21131840 (number)

21131840 is an even 8-digits composite number following 21131839 and preceding 21131841. In scientific notation, it is written as 2.1131840 × 10^7. The sum of its digits is 20. It has a total of 8 prime factors and 28 positive divisors. There are 8452608 positive integers (up to 21131840) that are relatively prime to 21131840.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred forty

Notation

Scientific notation 2.1131840 × 10^7
Engineering notation 2.1131840 × 10^6

Prime Factorization of 21131840

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 5 × 66037

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 660370
Product of the distinct prime numbers

The prime factorization of 21131840 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 66037. Since it has a total of 8 prime factors.

Most popular turbo-numbers

9, 2, 41, 16, 572, 258, 3402, 6516, 9605, 2609, 344107, 327337, 4258465, 8464244, 77757100, 46817270, 732960417, 589015991, 7182966375, 9515428708

Basic calculations (n = 21131840)

Multiplication

n×y
n×2 42263680
n×3 63395520
n×4 84527360
n×5 105659200

Division

n÷y
n÷2 10565920
n÷3 7043946.6666667
n÷3 5282960
n÷5 4226368

Exponentiation

ny
n2 446554661785600
n3 9.4365216641074E+21
n4 1.9941106596245E+29
n5 4.213922740148E+36

Nth Root

y√n
2√n 4596.9381113955
3√n 276.46857321959
4√n 67.800723531504
5√n 29.173427947008

Divisors of 21131840

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66037, 132074, 264148, 330185, 528296, 660370, 1056592, 1320740, 2113184, 2641480, 4226368, 5282960, 10565920, 21131840

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131840 can be divided by 28 positive divisors. The sum of these divisors (counting 21131840) is 1, the average is 0.035714285714286.

Base conversion 21131840

Base System Value
2 Binary 1010000100111001001000000
3 Ternary 1110202121102202
4 Quaternary 1100213021000
5 Quinary 20402204330
6 Senary 2032532332
8 Octal 120471100
10 Decimal 21131840
12 Duodecimal 70b10a8
16 Hexadecimal 1427240
20 Vigesimal 6c19c0
36 Base36 ckxfk

Cryptographic Hash Functions

md5 f6c5ad206cd0478516f37345a82b561a
sha1 7923a5ed89a05baa2608d2ac9527ce6f3d011b8c
sha256 6ef58a2df3e4c8e57e135451a9b4b031f4c2aae8e678f6c26b424c9eb1cbc3f5
sha512 abd759d6e9a5d23f5273dd11686bdb8391b3bd8c6b562ffd15b8399d95d11db1684f8f41977bc637d68687a6e630b3892171a89baf2daf199b9da14ee6b2cac6
ripemd-160 b53639071f977c5da14e370aa355a12e86ec0ee0

21131840 as geometric shapes

Circle

Radius = n
Diameter 42263680
Circumference 132775266.60167
Area 1.4028928448919E+15

Sphere

Radius = n
Volume 3.9527609513868E+22
Surface area 5.6115713795677E+15
Circumference 132775266.60167

Square

Length = n
Perimeter 84527360
Area 446554661785600
Diagonal 29884934.725898

Cube

Length = n
Surface area 2679327970713600
Volume 9.4365216641074E+21
Space diagonal 36601420.537416

Equilateral Triangle

Length = n
Perimeter 63395520
Area 1.9336384064235E+14
Altitude 18300710.268708

Triangular Pyramid

Length = n
Surface area 1.9336384064235E+14
Volume 1.1121047432507E+21
Height 9961644.9086328