20991057 (number)

20991057 is an odd 8-digits composite number following 20991056 and preceding 20991058. In scientific notation, it is written as 2.0991057 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 13553280 positive integers (up to 20991057) that are relatively prime to 20991057.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety-one thousand fifty-seven

Notation

Scientific notation 2.0991057 × 10^7
Engineering notation 2.0991057 × 10^6

Prime Factorization of 20991057

Prime Factorization 3 × 41 × 157 × 1087

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20991057
Product of the distinct prime numbers

The prime factorization of 20991057 is 3 × 41 × 157 × 1087. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 1, 12, 19, 218, 549, 2337, 2693, 88524, 68232, 959785, 672797, 7070498, 7423042, 73173403, 23377197, 711278299, 318745708, 8018019530, 2850816551

Basic calculations (n = 20991057)

Multiplication

n×y
n×2 41982114
n×3 62973171
n×4 83964228
n×5 104955285

Division

n÷y
n÷2 10495528.5
n÷3 6997019
n÷3 5247764.25
n÷5 4198211.4

Exponentiation

ny
n2 440624473977249
n3 9.2491734488515E+21
n4 1.9414992706773E+29
n5 4.0754121856245E+36

Nth Root

y√n
2√n 4581.5998297538
3√n 275.85324849186
4√n 67.687516055428
5√n 29.134452528582

Divisors of 20991057

1, 3, 41, 123, 157, 471, 1087, 3261, 6437, 19311, 44567, 133701, 170659, 511977, 6997019, 20991057

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20991056
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20991057 can be divided by 16 positive divisors. The sum of these divisors (counting 20991057) is 1, the average is 0.0625.

Base conversion 20991057

Base System Value
2 Binary 1010000000100110001010001
3 Ternary 1110111110022120
4 Quaternary 1100010301101
5 Quinary 20333203212
6 Senary 2025524453
8 Octal 120046121
10 Decimal 20991057
12 Duodecimal 7043729
16 Hexadecimal 1404c51
20 Vigesimal 6b3hch
36 Base36 chwsx

Cryptographic Hash Functions

md5 e71b15467ef5fb7ea0d593f8b8b2c678
sha1 4d23b4dc9766d53931956ead48cedd5930e4676d
sha256 3fac4b0ff3f92183a20f349cab21807c682b1a258f29344aaa4a2b42e6d75f32
sha512 33387b8ae1b990610f7114f58337c447b784aca89bb5436b1846c33e632efba8863a5ba0f57473cea5c3dbc4df7c935da783f6ecf6b050bb1b53de9b17e1181c
ripemd-160 6e8a8f91862b55c8ec70d33d06387b8520332e8e

20991057 as geometric shapes

Circle

Radius = n
Diameter 41982114
Circumference 131890700.92457
Area 1.3842626104388E+15

Sphere

Radius = n
Volume 3.8742847144919E+22
Surface area 5.5370504417552E+15
Circumference 131890700.92457

Square

Length = n
Perimeter 83964228
Area 440624473977249
Diagonal 29685837.497947

Cube

Length = n
Surface area 2643746843863494
Volume 9.2491734488515E+21
Space diagonal 36357577.228574

Equilateral Triangle

Length = n
Perimeter 62973171
Area 1.9079599399673E+14
Altitude 18178788.614287

Triangular Pyramid

Length = n
Surface area 1.9079599399673E+14
Volume 1.0900255443422E+21
Height 9895279.1659822