21139972 (number)

21139972 is an even 8-digits composite number following 21139971 and preceding 21139973. In scientific notation, it is written as 2.1139972 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 9059904 positive integers (up to 21139972) that are relatively prime to 21139972.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-nine thousand nine hundred seventy-two

Notation

Scientific notation 2.1139972 × 10^7
Engineering notation 2.1139972 × 10^6

Prime Factorization of 21139972

Prime Factorization 2 × 2 × 49 × 107857

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10569986
Product of the distinct prime numbers

The prime factorization of 21139972 is 2 × 2 × 49 × 107857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 53, 92, 462, 528, 7450, 766, 44690, 14568, 978205, 243834, 5467206, 5840438, 81546019, 7310786, 387038255, 296210552, 6849069108, 1910750235

Basic calculations (n = 21139972)

Multiplication

n×y
n×2 42279944
n×3 63419916
n×4 84559888
n×5 105699860

Division

n÷y
n÷2 10569986
n÷3 7046657.3333333
n÷3 5284993
n÷5 4227994.4

Exponentiation

ny
n2 446898416160784
n3 9.4474200044833E+21
n4 1.9971819436702E+29
n5 4.2220370368093E+36

Nth Root

y√n
2√n 4597.8225281105
3√n 276.50403241462
4√n 67.807245395389
5√n 29.175672917693

Divisors of 21139972

1, 2, 4, 49, 98, 196, 107857, 215714, 431428, 5284993, 10569986, 21139972

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21139971
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21139972 can be divided by 12 positive divisors. The sum of these divisors (counting 21139972) is 1, the average is 0.083333333333333.

Base conversion 21139972

Base System Value
2 Binary 1010000101001001000000100
3 Ternary 1110210000120221
4 Quaternary 1100221020010
5 Quinary 20402434342
6 Senary 2033034124
8 Octal 120511004
10 Decimal 21139972
12 Duodecimal 70b5944
16 Hexadecimal 1429204
20 Vigesimal 6c29ic
36 Base36 cl3pg

Cryptographic Hash Functions

md5 05d9bb68faadf387d1d83a6ed19ea5fc
sha1 a540223e86e213b414f292b1b945e30e3106d303
sha256 7c81dfd6d443b88f54afedb82e92fb52bec2ac59cd1ab8604323384b8fa265ee
sha512 23ac7099fb08bcff5a60bb8e1b29fc6d3f4805b62530d8627f58ea0697a801e9f289f610ac045fdffa367b54a755aa8f991632a23569534100491c095a4213bb
ripemd-160 67d20fc44f9e729cc2e95616bab445535725333c

21139972 as geometric shapes

Circle

Radius = n
Diameter 42279944
Circumference 132826361.46459
Area 1.4039727811116E+15

Sphere

Radius = n
Volume 3.9573260375283E+22
Surface area 5.6158911244465E+15
Circumference 132826361.46459

Square

Length = n
Perimeter 84559888
Area 446898416160784
Diagonal 29896435.110587

Cube

Length = n
Surface area 2681390496964704
Volume 9.4474200044833E+21
Space diagonal 36615505.574583

Equilateral Triangle

Length = n
Perimeter 63419916
Area 1.9351269065313E+14
Altitude 18307752.787292

Triangular Pyramid

Length = n
Surface area 1.9351269065313E+14
Volume 1.1133891249813E+21
Height 9965478.3701958