21291237 (number)

21291237 is an odd 8-digits composite number following 21291236 and preceding 21291238. In scientific notation, it is written as 2.1291237 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 12903720 positive integers (up to 21291237) that are relatively prime to 21291237.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1291237 × 10^7
Engineering notation 2.1291237 × 10^6

Prime Factorization of 21291237

Prime Factorization 33 × 3 × 215063

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21291237
Product of the distinct prime numbers

The prime factorization of 21291237 is 33 × 3 × 215063. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21291237)

Multiplication

n×y
n×2 42582474
n×3 63873711
n×4 85164948
n×5 106456185

Division

n÷y
n÷2 10645618.5
n÷3 7097079
n÷3 5322809.25
n÷5 4258247.4

Exponentiation

ny
n2 453316772990169
n3 9.6516748498089E+21
n4 2.0549609667422E+29
n5 4.3752660968657E+36

Nth Root

y√n
2√n 4614.2428414638
3√n 277.1619648219
4√n 67.928218300378
5√n 29.217306659393

Divisors of 21291237

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21291236
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21291237 can be divided by 8 positive divisors. The sum of these divisors (counting 21291237) is 1, the average is 0.125.

Base conversion 21291237

Base System Value
2 Binary 1010001001110000011100101
3 Ternary 1111001201002100
4 Quaternary 1101032003211
5 Quinary 20422304422
6 Senary 2040202313
8 Octal 121160345
10 Decimal 21291237
12 Duodecimal 7169399
16 Hexadecimal 144e0e5
20 Vigesimal 6d181h
36 Base36 cocf9

Cryptographic Hash Functions

md5 932460e91cd857856877d66af8d0d0b9
sha1 80cdfe143b820c968cf5aae2d8fb2af035383c8e
sha256 0e15cd1bde8b3e1d13af95bdced2c4747efacc64295d0a5c3235811a69862b20
sha512 b5604815c0ba26e5838b74ee9635989135010c0f669561e9a21989dcc595e5bdb0cc67ef099af46afae2a4e00e9df826e9fe2b18862fc64b72ee30470c5bc7be
ripemd-160 7223c69eed6f25d4ed4fb47e64b55b4b86db1c5f

21291237 as geometric shapes

Circle

Radius = n
Diameter 42582474
Circumference 133776787.49008
Area 1.4241366437749E+15

Sphere

Radius = n
Volume 4.0428841070663E+22
Surface area 5.6965465750998E+15
Circumference 133776787.49008

Square

Length = n
Perimeter 85164948
Area 453316772990169
Diagonal 30110356.1251

Cube

Length = n
Surface area 2719900637941014
Volume 9.6516748498089E+21
Space diagonal 36877504.23999

Equilateral Triangle

Length = n
Perimeter 63873711
Area 1.9629192068553E+14
Altitude 18438752.119995

Triangular Pyramid

Length = n
Surface area 1.9629192068553E+14
Volume 1.1374607893513E+21
Height 10036785.375033