21291238 (number)

21291238 is an even 8-digits composite number following 21291237 and preceding 21291239. In scientific notation, it is written as 2.1291238 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 10132936 positive integers (up to 21291238) that are relatively prime to 21291238.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred ninety-one thousand two hundred thirty-eight

Notation

Scientific notation 2.1291238 × 10^7
Engineering notation 2.1291238 × 10^6

Prime Factorization of 21291238

Prime Factorization 2 × 227 × 23 × 2039

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21291238
Product of the distinct prime numbers

The prime factorization of 21291238 is 2 × 227 × 23 × 2039. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 35, 99, 97, 1, 7894, 6518, 84446, 25482, 231722, 802969, 3111840, 254327, 91044430, 87582573, 239411737, 255353004, 2610328570, 5452103067

Basic calculations (n = 21291238)

Multiplication

n×y
n×2 42582476
n×3 63873714
n×4 85164952
n×5 106456190

Division

n÷y
n÷2 10645619
n÷3 7097079.3333333
n÷3 5322809.5
n÷5 4258247.6

Exponentiation

ny
n2 453316815572644
n3 9.6516762097593E+21
n4 2.0549613528092E+29
n5 4.3752671243463E+36

Nth Root

y√n
2√n 4614.2429498239
3√n 277.16196916111
4√n 67.928219097986
5√n 29.217306933847

Divisors of 21291238

1, 2, 23, 46, 227, 454, 2039, 4078, 5221, 10442, 46897, 93794, 462853, 925706, 10645619, 21291238

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21291237
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21291238 can be divided by 16 positive divisors. The sum of these divisors (counting 21291238) is 1, the average is 0.0625.

Base conversion 21291238

Base System Value
2 Binary 1010001001110000011100110
3 Ternary 1111001201002101
4 Quaternary 1101032003212
5 Quinary 20422304423
6 Senary 2040202314
8 Octal 121160346
10 Decimal 21291238
12 Duodecimal 716939a
16 Hexadecimal 144e0e6
20 Vigesimal 6d181i
36 Base36 cocfa

Cryptographic Hash Functions

md5 811a23a94576b162e78b3166ef4f6ec8
sha1 768accf72b08b201146437c0be6ba2c0c4f80352
sha256 9c92a7da77bfecdcd84bbb4a5851c1e93945648e4748902844416abf1729b46d
sha512 5d86369ef588b7d5455a2c04059cf507741e573fefb283dbb03ce7ca522f6e94b65e89da51194973bf83497ea2c1fdfedcf50e43b3b359e33217e326ff079813
ripemd-160 c10e4bbaa4260b3ff87bd5227a93c6f7b0158f60

21291238 as geometric shapes

Circle

Radius = n
Diameter 42582476
Circumference 133776793.77326
Area 1.4241367775517E+15

Sphere

Radius = n
Volume 4.0428846767209E+22
Surface area 5.696547110207E+15
Circumference 133776793.77326

Square

Length = n
Perimeter 85164952
Area 453316815572644
Diagonal 30110357.539313

Cube

Length = n
Surface area 2719900893435864
Volume 9.6516762097593E+21
Space diagonal 36877505.972041

Equilateral Triangle

Length = n
Perimeter 63873714
Area 1.9629193912429E+14
Altitude 18438752.986021

Triangular Pyramid

Length = n
Surface area 1.9629193912429E+14
Volume 1.1374609496229E+21
Height 10036785.846438