21291531 (number)

21291531 is an odd 8-digits composite number following 21291530 and preceding 21291532. In scientific notation, it is written as 2.1291531 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 13105664 positive integers (up to 21291531) that are relatively prime to 21291531.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1291531 × 10^7
Engineering notation 2.1291531 × 10^6

Prime Factorization of 21291531

Prime Factorization 3 × 17 × 53 × 7877

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21291531
Product of the distinct prime numbers

The prime factorization of 21291531 is 3 × 17 × 53 × 7877. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 50, 6, 313, 47, 6091, 1285, 20976, 41542, 584778, 897727, 4903076, 4838583, 89082784, 77281236, 387009455, 954427603, 3179024831, 9254221935

Basic calculations (n = 21291531)

Multiplication

n×y
n×2 42583062
n×3 63874593
n×4 85166124
n×5 106457655

Division

n÷y
n÷2 10645765.5
n÷3 7097177
n÷3 5322882.75
n÷5 4258306.2

Exponentiation

ny
n2 453329292323961
n3 9.6520746807237E+21
n4 2.0550744727894E+29
n5 4.3755681844705E+36

Nth Root

y√n
2√n 4614.274699235
3√n 277.16324054615
4√n 67.928452795828
5√n 29.21738734837

Divisors of 21291531

1, 3, 17, 51, 53, 159, 901, 2703, 7877, 23631, 133909, 401727, 417481, 1252443, 7097177, 21291531

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 -21291530
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 21291531 can be divided by 16 positive divisors. The sum of these divisors (counting 21291531) is 1, the average is 0.0625.

Base conversion 21291531

Base System Value
2 Binary 1010001001110001000001011
3 Ternary 1111001201111020
4 Quaternary 1101032020023
5 Quinary 20422312111
6 Senary 2040203523
8 Octal 121161013
10 Decimal 21291531
12 Duodecimal 71695a3
16 Hexadecimal 144e20b
20 Vigesimal 6d18gb
36 Base36 cocnf

Cryptographic Hash Functions

md5 459acbc210c48e119e9e4d6a0330f8db
sha1 d639ac95006b9241cbbefbff59ec9624ff42f465
sha256 247b5c0d2fe32e8afefca680cdc1f295e895c37a648937caf2241453a04a1c67
sha512 d038a58c4f7b400990a648f043e81a40574091f03dd1e267eff5dad4cc6d0d187e134f06cfa9f0cee2c10a5f26bef994372d44ed6465a287209838959c339e54
ripemd-160 a00c0077b9288e0ab7b60d5f0dd2c2de62cceca1

21291531 as geometric shapes

Circle

Radius = n
Diameter 42583062
Circumference 133778634.74656
Area 1.424175974422E+15

Sphere

Radius = n
Volume 4.0430515878482E+22
Surface area 5.6967038976881E+15
Circumference 133778634.74656

Square

Length = n
Perimeter 85166124
Area 453329292323961
Diagonal 30110771.903887

Cube

Length = n
Surface area 2719975753943766
Volume 9.6520746807237E+21
Space diagonal 36878013.462928

Equilateral Triangle

Length = n
Perimeter 63874593
Area 1.9629734171609E+14
Altitude 18439006.731464

Triangular Pyramid

Length = n
Surface area 1.9629734171609E+14
Volume 1.1375079098764E+21
Height 10036923.967962