20997 (number)

20997 is an odd 5-digits composite number following 20996 and preceding 20998. In scientific notation, it is written as 2.0997 × 10^4. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 13992 positive integers (up to 20997) that are relatively prime to 20997.

Interesting facts

Basic properties

Name

Name twenty thousand nine hundred ninety-seven

Notation

Scientific notation 2.0997 × 10^4
Engineering notation 2.0997 × 10^3

Prime Factorization of 20997

Prime Factorization 9 × 2333

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20997
Product of the distinct prime numbers

The prime factorization of 20997 is 9 × 2333. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 68, 5, 719, 219, 9472, 4288, 72342, 30245, 344825, 229753, 5389614, 4867794, 38231999, 36614088, 300993784, 110228500, 2602062602, 7537329689

Basic calculations (n = 20997)

Multiplication

n×y
n×2 41994
n×3 62991
n×4 83988
n×5 104985

Division

n÷y
n÷2 10498.5
n÷3 6999
n÷3 5249.25
n÷5 4199.4

Exponentiation

ny
n2 440874009
n3 9257031566973
n4 194369891811732081
n5 4.0811846183709E+21

Nth Root

y√n
2√n 144.9034161088
3√n 27.587927927828
4√n 12.037583482942
5√n 7.318657941738

Divisors of 20997

1, 9, 2333, 20997

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20996
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20997 can be divided by 4 positive divisors. The sum of these divisors (counting 20997) is 1, the average is 0.25.

Base conversion 20997

Base System Value
2 Binary 101001000000101
3 Ternary 1001210200
4 Quaternary 11020011
5 Quinary 1132442
6 Senary 241113
8 Octal 51005
10 Decimal 20997
12 Duodecimal 10199
16 Hexadecimal 5205
20 Vigesimal 2c9h
36 Base36 g79

Cryptographic Hash Functions

md5 c249e9902551985fca7bb2c496f67cc1
sha1 008de3806159187d76c997d147226c998d52f9d2
sha256 1a605daa4c326c632bfead4476543f8dc20d0c467cd644ad8814dd9bb8fa8c62
sha512 95b02ada74de1cf13a17650adcc4e24349f55a6d650a9d44d4aad644d1cf1d1c2180e88f4db2e0097d38dfc36882bc8b0e51997028e9aa32459b325f7e172a9a
ripemd-160 444ebe507c6becd07ff2dae8dba6f80de883738f

20997 as geometric shapes

Circle

Radius = n
Diameter 41994
Circumference 131928.04189485
Area 1385046547.8331

Sphere

Radius = n
Volume 38775763153135
Surface area 5540186191.3323
Circumference 131928.04189485

Square

Length = n
Perimeter 83988
Area 440874009
Diagonal 29694.242169148

Cube

Length = n
Surface area 2645244054
Volume 9257031566973
Space diagonal 36367.870806524

Equilateral Triangle

Length = n
Perimeter 62991
Area 190904045.83114
Altitude 18183.935403262

Triangular Pyramid

Length = n
Surface area 190904045.83114
Volume 1090951632444.1
Height 9898.0807230493