21379931 (number)

21379931 is an odd 8-digits composite number following 21379930 and preceding 21379932. In scientific notation, it is written as 2.1379931 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 19420800 positive integers (up to 21379931) that are relatively prime to 21379931.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1379931 × 10^7
Engineering notation 2.1379931 × 10^6

Prime Factorization of 21379931

Prime Factorization 29 × 17 × 17 × 2551

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1257643
Product of the distinct prime numbers

The prime factorization of 21379931 is 29 × 17 × 17 × 2551. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 10, 99, 48, 272, 572, 7880, 4732, 53203, 38105, 763924, 683611, 9026886, 9043130, 86107355, 83514821, 122729548, 855994419, 7919350777, 3597518843

Basic calculations (n = 21379931)

Multiplication

n×y
n×2 42759862
n×3 64139793
n×4 85519724
n×5 106899655

Division

n÷y
n÷2 10689965.5
n÷3 7126643.6666667
n÷3 5344982.75
n÷5 4275986.2

Exponentiation

ny
n2 457101449564761
n3 9.7727974516946E+21
n4 2.0894173519421E+29
n5 4.4671598814724E+36

Nth Root

y√n
2√n 4623.84374736
3√n 277.54629425413
4√n 67.998851073823
5√n 29.241608605845

Divisors of 21379931

1, 17, 29, 289, 493, 2551, 8381, 43367, 73979, 737239, 1257643, 21379931

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 -21379930
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 21379931 can be divided by 12 positive divisors. The sum of these divisors (counting 21379931) is 1, the average is 0.083333333333333.

Base conversion 21379931

Base System Value
2 Binary 1010001100011101101011011
3 Ternary 1111020012202022
4 Quaternary 1101203231123
5 Quinary 20433124211
6 Senary 2042125055
8 Octal 121435533
10 Decimal 21379931
12 Duodecimal 71b078b
16 Hexadecimal 1463b5b
20 Vigesimal 6dc9gb
36 Base36 cq8uz

Cryptographic Hash Functions

md5 54690f537fe8e5a2c0a0c8a531e71af2
sha1 b7ed050bf0a71c5715d5c70b4a727df699bb265e
sha256 2c1bbabf3e060e468b472225c0a1b0a4693220bc3b268d10686aefc6c80122c6
sha512 a61f124df2a2741e7e9a6c5bdb458df99fcf9906aff7e404ded770dfa721531688455d7291f45d86a3c2b5f21e88861cd303c39d2d09a8f42870d36c5dde2732
ripemd-160 e0ddf9bc32e6d2bb4aebad901431c16f82b0a57c

21379931 as geometric shapes

Circle

Radius = n
Diameter 42759862
Circumference 134334068.32771
Area 1.4360265558979E+15

Sphere

Radius = n
Volume 4.093619823902E+22
Surface area 5.7441062235916E+15
Circumference 134334068.32771

Square

Length = n
Perimeter 85519724
Area 457101449564761
Diagonal 30235788.382801

Cube

Length = n
Surface area 2742608697388566
Volume 9.7727974516946E+21
Space diagonal 37031126.754317

Equilateral Triangle

Length = n
Perimeter 64139793
Area 1.9793073371489E+14
Altitude 18515563.377158

Triangular Pyramid

Length = n
Surface area 1.9793073371489E+14
Volume 1.151735224876E+21
Height 10078596.1276