21131856 (number)

21131856 is an even 8-digits composite number following 21131855 and preceding 21131857. In scientific notation, it is written as 2.1131856 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 20 positive divisors. There are 7043904 positive integers (up to 21131856) that are relatively prime to 21131856.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred fifty-six

Notation

Scientific notation 2.1131856 × 10^7
Engineering notation 2.1131856 × 10^6

Prime Factorization of 21131856

Prime Factorization 2 × 2 × 2 × 2 × 9 × 146749

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2641482
Product of the distinct prime numbers

The prime factorization of 21131856 is 2 × 2 × 2 × 2 × 9 × 146749. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 10, 47, 79, 112, 810, 4113, 1836, 41904, 2760, 956337, 199728, 5283766, 767769, 99524456, 1656479, 879323487, 379009924, 7984400060, 753949917

Basic calculations (n = 21131856)

Multiplication

n×y
n×2 42263712
n×3 63395568
n×4 84527424
n×5 105659280

Division

n÷y
n÷2 10565928
n÷3 7043952
n÷3 5282964
n÷5 4226371.2

Exponentiation

ny
n2 446555338004736
n3 9.4365430987474E+21
n4 1.9941166990052E+29
n5 4.2139386930574E+36

Nth Root

y√n
2√n 4596.9398516839
3√n 276.46864299575
4√n 67.800736365352
5√n 29.173432364746

Divisors of 21131856

1, 2, 4, 8, 9, 16, 18, 36, 72, 144, 146749, 293498, 586996, 1173992, 1320741, 2347984, 2641482, 5282964, 10565928, 21131856

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131855
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131856 can be divided by 20 positive divisors. The sum of these divisors (counting 21131856) is 1, the average is 0.05.

Base conversion 21131856

Base System Value
2 Binary 1010000100111001001010000
3 Ternary 1110202121110100
4 Quaternary 1100213021100
5 Quinary 20402204411
6 Senary 2032532400
8 Octal 120471120
10 Decimal 21131856
12 Duodecimal 70b1100
16 Hexadecimal 1427250
20 Vigesimal 6c19cg
36 Base36 ckxg0

Cryptographic Hash Functions

md5 44086c57694c29d14597e9ce83343ca9
sha1 8034aa0c8eee300664b63ed039bbb906c631e536
sha256 e097cf606bf6059473838f9f8c50c56c6ffb090833ad64ebdb33269c0395ff84
sha512 bc0772a4626365e2d8c4247e1781594b88a2dbc0f9c74b4518e3ac63c80da14c09aa6963270136166b450d45ff4399c39869617cca2eda3451f259c3bd99117e
ripemd-160 9076c96b91962b54339ba9c99822f4bd2debb8b6

21131856 as geometric shapes

Circle

Radius = n
Diameter 42263712
Circumference 132775367.13263
Area 1.402894969297E+15

Sphere

Radius = n
Volume 3.9527699299078E+22
Surface area 5.6115798771879E+15
Circumference 132775367.13263

Square

Length = n
Perimeter 84527424
Area 446555338004736
Diagonal 29884957.353315

Cube

Length = n
Surface area 2679332028028416
Volume 9.4365430987474E+21
Space diagonal 36601448.250229

Equilateral Triangle

Length = n
Perimeter 63395568
Area 1.9336413345382E+14
Altitude 18300724.125115

Triangular Pyramid

Length = n
Surface area 1.9336413345382E+14
Volume 1.1121072693472E+21
Height 9961652.4511051