21008972 (number)

21008972 is an even 8-digits composite number following 21008971 and preceding 21008973. In scientific notation, it is written as 2.1008972 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 10495296 positive integers (up to 21008972) that are relatively prime to 21008972.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1008972 × 10^7
Engineering notation 2.1008972 × 10^6

Prime Factorization of 21008972

Prime Factorization 2 × 2 × 2467 × 2129

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10504486
Product of the distinct prime numbers

The prime factorization of 21008972 is 2 × 2 × 2467 × 2129. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 41, 30, 345, 526, 774, 9566, 83595, 37176, 761512, 386863, 2840557, 9999511, 46399968, 81540830, 643997895, 983761513, 9072022076, 3802922939

Basic calculations (n = 21008972)

Multiplication

n×y
n×2 42017944
n×3 63026916
n×4 84035888
n×5 105044860

Division

n÷y
n÷2 10504486
n÷3 7002990.6666667
n÷3 5252243
n÷5 4201794.4

Exponentiation

ny
n2 441376904496784
n3 9.2728750280196E+21
n4 1.9481357182316E+29
n5 4.0928328756528E+36

Nth Root

y√n
2√n 4583.5545158752
3√n 275.93170262763
4√n 67.701953560257
5√n 29.139423842083

Divisors of 21008972

1, 2, 4, 2129, 2467, 4258, 4934, 8516, 9868, 5252243, 10504486, 21008972

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 -21008971
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 21008972 can be divided by 12 positive divisors. The sum of these divisors (counting 21008972) is 1, the average is 0.083333333333333.

Base conversion 21008972

Base System Value
2 Binary 1010000001001001001001100
3 Ternary 1110112100220002
4 Quaternary 1100021021030
5 Quinary 20334241342
6 Senary 2030143432
8 Octal 120111114
10 Decimal 21008972
12 Duodecimal 7051b78
16 Hexadecimal 140924c
20 Vigesimal 6b628c
36 Base36 ciamk

Cryptographic Hash Functions

md5 c20c179b649cfd5234050298f7ce6366
sha1 b5acea3165c0bd346c3a78fec8f235387c105f37
sha256 f14a8b9edf81f958a85a353068735cb9dd0d114df1e1dbec5c748e127432c0d0
sha512 5f6192c02923d51d6f20c6ab3885424d648ea4f03399f8a548bae2466a99213fca7075b2b31646004eb9c7344591de15e4156674e970b3e3e6aefb6cade4a9f9
ripemd-160 e262a4064d12c8771e075bd9ddef00c7f049159c

21008972 as geometric shapes

Circle

Radius = n
Diameter 42017944
Circumference 132003264.18935
Area 1.3866264406313E+15

Sphere

Radius = n
Volume 3.8842128087577E+22
Surface area 5.5465057625252E+15
Circumference 132003264.18935

Square

Length = n
Perimeter 84035888
Area 441376904496784
Diagonal 29711173.133917

Cube

Length = n
Surface area 2648261426980704
Volume 9.2728750280196E+21
Space diagonal 36388606.918792

Equilateral Triangle

Length = n
Perimeter 63026916
Area 1.9112180596898E+14
Altitude 18194303.459396

Triangular Pyramid

Length = n
Surface area 1.9112180596898E+14
Volume 1.0928188022347E+21
Height 9903724.3779722