999997 (number)
999,997 (nine hundred ninetynine thousand nine hundred ninetyseven) is an odd sixdigits composite number following 999996 and preceding 999998. In scientific notation, it is written as 9.99997 × 10^{5}. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 997,920 positive integers (up to 999997) that are relatively prime to 999997.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 52
 Digital Root 7
Name
Short name  999 thousand 997 

Full name  nine hundred ninetynine thousand nine hundred ninetyseven 
Notation
Scientific notation  9.99997 × 10^{5} 

Engineering notation  999.997 × 10^{3} 
Prime Factorization of 999997
Prime Factorization 757 × 1321
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  2  Total number of prime factors 
rad(n)  Radical  999997  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  0  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 999,997 is 757 × 1321. Since it has a total of 2 prime factors, 999,997 is a composite number.
Divisors of 999997
4 divisors
τ(n)  Total Divisors  4  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  1002076  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  2079  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  250519  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  999.99849999887  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  3.9917012282502  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 999,997 can be divided by 4 positive divisors (out of which 0 are even, and 4 are odd). The sum of these divisors (counting 999,997) is 1,002,076, the average is 250,519.
Other Arithmetic Functions (n = 999997)
φ(n)  Euler Totient  997920  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  83160  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 78345  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  16  The number of ways n can be represented as the sum of 2 squares 
There are 997,920 positive integers (less than 999,997) that are coprime with 999,997. And there are approximately 78,345 prime numbers less than or equal to 999,997.
Divisibility of 999997
m  2  3  4  5  6  7  8  9 

n mod m  1  1  1  2  1  5  5  7 
999,997 is not divisible by any number less than or equal to 9.
Classification of 999997
By Arithmetic functions
 Arithmetic
 Semiprime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
Base conversion (999997)
Base  System  Value 

2  Binary  11110100001000111101 
3  Ternary  1212210201221 
4  Quaternary  3310020331 
5  Quinary  223444442 
6  Senary  33233341 
8  Octal  3641075 
10  Decimal  999997 
12  Duodecimal  402851 
16  Hexadecimal  f423d 
20  Vigesimal  64jjh 
36  Base36  lflp 
Basic calculations (n = 999997)
Multiplication
n×yn×2  1999994 

n×3  2999991 
n×4  3999988 
n×5  4999985 
Division
n÷yn÷2  499998.500 

n÷3  333332.333 
n÷4  249999.250 
n÷5  199999.400 
Exponentiation
n^{y}n^{2}  999994000009 

n^{3}  999991000026999973 
n^{4}  999988000053999892000081 
n^{5}  999985000089999730000404999757 
Nth Root
^{y}√n^{2}√n  999.99849999887 

^{3}√n  99.9998999999 
^{4}√n  31.622752884575 
^{5}√n  15.848922415241 
999997 as geometric shapes
Circle
Radius = nDiameter  1999994 

Circumference  6283166.4576237 
Area  3141573804062.1 
Sphere
Radius = nVolume  4.1887525057876E+18 

Surface area  12566295216249 
Circumference  6283166.4576237 
Square
Length = nPerimeter  3999988 

Area  999994000009 
Diagonal  1414209.3197324 
Cube
Length = nSurface area  5999964000054 

Volume  999991000026999973 
Space diagonal  1732045.6114165 
Equilateral Triangle
Length = nPerimeter  2999991 

Area  433010103819.91 
Altitude  866022.80570823 
Triangular Pyramid
Length = nSurface area  1732040415279.6 

Volume  1.1785006954077E+17 
Height  816494.13143798 
Cryptographic Hash Functions
md5  9467a6b1a3f53c528087f9976ac934a3 

sha1  ee9359faf19a66df89dc4fd32fa8ec28ee0c9d27 
sha256  c5ba3e55f1b1b26e2515103e66cbef17d7cd7868569d681f652d787493b55c90 
sha512  f9c50512d50c4ebacf741cb91417eae8e46b440376d07af5c0390a9189ebf729e15f99ee34c9c2579400e503b60ec07484248c44f6f3a464c56a4400523f596c 
ripemd160  06cf6dd4d2cb10884a372b4a276176e4501264e9 