21131212 (number)

21131212 is an even 8-digits composite number following 21131211 and preceding 21131213. In scientific notation, it is written as 2.1131212 × 10^7. The sum of its digits is 13. It has a total of 4 prime factors and 12 positive divisors. There are 10224720 positive integers (up to 21131212) that are relatively prime to 21131212.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand two hundred twelve

Notation

Scientific notation 2.1131212 × 10^7
Engineering notation 2.1131212 × 10^6

Prime Factorization of 21131212

Prime Factorization 2 × 2 × 31 × 170413

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10565606
Product of the distinct prime numbers

The prime factorization of 21131212 is 2 × 2 × 31 × 170413. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 47, 59, 628, 875, 1249, 3237, 56749, 21046, 349406, 637170, 7655967, 7271509, 93821014, 96655807, 110159550, 743265557, 7769942954, 5845574194

Basic calculations (n = 21131212)

Multiplication

n×y
n×2 42262424
n×3 63393636
n×4 84524848
n×5 105656060

Division

n÷y
n÷2 10565606
n÷3 7043737.3333333
n÷3 5282803
n÷5 4226242.4

Exponentiation

ny
n2 446528120588944
n3 9.4356803801265E+21
n4 1.9938736247669E+29
n5 4.2132966266159E+36

Nth Root

y√n
2√n 4596.8698045518
3√n 276.46583447742
4√n 67.800219797223
5√n 29.173254548661

Divisors of 21131212

1, 2, 4, 31, 62, 124, 170413, 340826, 681652, 5282803, 10565606, 21131212

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 -21131211
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 21131212 can be divided by 12 positive divisors. The sum of these divisors (counting 21131212) is 1, the average is 0.083333333333333.

Base conversion 21131212

Base System Value
2 Binary 1010000100110111111001100
3 Ternary 1110202120120111
4 Quaternary 1100212333030
5 Quinary 20402144322
6 Senary 2032525404
8 Octal 120467714
10 Decimal 21131212
12 Duodecimal 70b0864
16 Hexadecimal 1426fcc
20 Vigesimal 6c180c
36 Base36 ckwy4

Cryptographic Hash Functions

md5 013f0931e3eb03f09bf1d7ce3acbc03d
sha1 ad2b46218809969546eb418a4b3e78bd40a52fdd
sha256 3388717578baa1637f9cbb623563d46f0b027f5f6f700a80b7a70ff7a679eae5
sha512 6777579704908acc075ab16047dc4a480b93ba2e839ab4913028a58f5618cea2c72313fffa7d93893c77c0463ede444681bdb6046df59939dfca3f2c3d08e578
ripemd-160 485a26916c1ef1a9f5728c1a34b49f77e9238634

21131212 as geometric shapes

Circle

Radius = n
Diameter 42262424
Circumference 132771320.7613
Area 1.4028094632635E+15

Sphere

Radius = n
Volume 3.9524085551769E+22
Surface area 5.6112378530539E+15
Circumference 132771320.7613

Square

Length = n
Perimeter 84524848
Area 446528120588944
Diagonal 29884046.599781

Cube

Length = n
Surface area 2679168723533664
Volume 9.4356803801265E+21
Space diagonal 36600332.809509

Equilateral Triangle

Length = n
Perimeter 63393636
Area 1.9335234796707E+14
Altitude 18300166.404755

Triangular Pyramid

Length = n
Surface area 1.9335234796707E+14
Volume 1.1120055969827E+21
Height 9961348.8665937