21279916 (number)

21279916 is an even 8-digits composite number following 21279915 and preceding 21279917. In scientific notation, it is written as 2.1279916 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 18 positive divisors. There are 9119880 positive integers (up to 21279916) that are relatively prime to 21279916.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1279916 × 10^7
Engineering notation 2.1279916 × 10^6

Prime Factorization of 21279916

Prime Factorization 2 × 2 × 7 × 7 × 108571

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1519994
Product of the distinct prime numbers

The prime factorization of 21279916 is 2 × 2 × 7 × 7 × 108571. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 7, 67, 22, 332, 136, 3784, 1359, 40039, 54498, 452865, 390617, 1116027, 9149817, 7451502, 65176580, 356173428, 73627365, 964090808, 7719995871

Basic calculations (n = 21279916)

Multiplication

n×y
n×2 42559832
n×3 63839748
n×4 85119664
n×5 106399580

Division

n÷y
n÷2 10639958
n÷3 7093305.3333333
n÷3 5319979
n÷5 4255983.2

Exponentiation

ny
n2 452834824967056
n3 9.6362870371737E+21
n4 2.0505937870294E+29
n5 4.3636463538108E+36

Nth Root

y√n
2√n 4613.0159332047
3√n 277.11283182406
4√n 67.919186782563
5√n 29.214198906641

Divisors of 21279916

1, 2, 4, 7, 14, 28, 49, 98, 196, 108571, 217142, 434284, 759997, 1519994, 3039988, 5319979, 10639958, 21279916

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21279915
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21279916 can be divided by 18 positive divisors. The sum of these divisors (counting 21279916) is 1, the average is 0.055555555555556.

Base conversion 21279916

Base System Value
2 Binary 1010001001011010010101100
3 Ternary 1111001010120001
4 Quaternary 1101023102230
5 Quinary 20421424131
6 Senary 2040034044
8 Octal 121132254
10 Decimal 21279916
12 Duodecimal 7162924
16 Hexadecimal 144b4ac
20 Vigesimal 6cjjfg
36 Base36 co3os

Cryptographic Hash Functions

md5 b27b8439f95b3b91be09ccd91a370cb9
sha1 2a5f57174962090a35ab9b71306acd3d3e1e476c
sha256 12fec6756609dab21e7147c13f30a4b3351b0f2e1d278da19906561d60d57a43
sha512 f0f03c6b1cac5971591e88797cbbc8fee1a88dcc66b96732e9726e82e984b5522b25a5ef205f31f84ae1f7a19b9196efcba7499e3e3006bbc85d69aac44dfe4a
ripemd-160 1d2452988a4b04156db0355b6e47e677afc08769

21279916 as geometric shapes

Circle

Radius = n
Diameter 42559832
Circumference 133705655.54922
Area 1.4226225594061E+15

Sphere

Radius = n
Volume 4.0364384751823E+22
Surface area 5.6904902376245E+15
Circumference 133705655.54922

Square

Length = n
Perimeter 85119664
Area 452834824967056
Diagonal 30094345.81336

Cube

Length = n
Surface area 2717008949802336
Volume 9.6362870371737E+21
Space diagonal 36857895.692798

Equilateral Triangle

Length = n
Perimeter 63839748
Area 1.9608323106988E+14
Altitude 18428947.846399

Triangular Pyramid

Length = n
Surface area 1.9608323106988E+14
Volume 1.1356473182409E+21
Height 10031448.604453