21521641 (number)

21521641 is an odd 8-digits composite number following 21521640 and preceding 21521642. In scientific notation, it is written as 2.1521641 × 10^7. The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors. There are 21030912 positive integers (up to 21521641) that are relatively prime to 21521641.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred twenty-one thousand six hundred forty-one

Notation

Scientific notation 2.1521641 × 10^7
Engineering notation 2.1521641 × 10^6

Prime Factorization of 21521641

Prime Factorization 113 × 73 × 2609

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21521641
Product of the distinct prime numbers

The prime factorization of 21521641 is 113 × 73 × 2609. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21521641)

Multiplication

n×y
n×2 43043282
n×3 64564923
n×4 86086564
n×5 107608205

Division

n÷y
n÷2 10760820.5
n÷3 7173880.3333333
n÷3 5380410.25
n÷5 4304328.2

Exponentiation

ny
n2 463181031332881
n3 9.968415874356E+21
n4 2.1453666778659E+29
n5 4.6171811454393E+36

Nth Root

y√n
2√n 4639.1422698598
3√n 278.15815319977
4√n 68.111249216703
5√n 29.280269960103

Divisors of 21521641

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 -21521640
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 21521641 can be divided by 8 positive divisors. The sum of these divisors (counting 21521641) is 1, the average is 0.125.

Base conversion 21521641

Base System Value
2 Binary 1010010000110010011101001
3 Ternary 1111111102010211
4 Quaternary 1102012103221
5 Quinary 21002143031
6 Senary 2045141121
8 Octal 122062351
10 Decimal 21521641
12 Duodecimal 725a7a1
16 Hexadecimal 14864e9
20 Vigesimal 6ea421
36 Base36 cta7d

Cryptographic Hash Functions

md5 a6fbdbe28416de528eda379e81c6b209
sha1 3d45951b0be7a1d424961123c2433af8f3bbceca
sha256 263e5d8ef401e975acd06fdaf1b244f8960e22be820c1c403612d4d1d8cae88c
sha512 2d6f747036618d437daabc44e1b8184386c8889b62aad72a9cc067fd28ebd4a5ee8f6528d0cd6eebe87b4c4c65321290e632fcab2501efb8ce15e8f727a60570
ripemd-160 83d2b3f825977694936b57b54501585d521b824f

21521641 as geometric shapes

Circle

Radius = n
Diameter 43043282
Circumference 135224458.51759
Area 1.4551261253175E+15

Sphere

Radius = n
Volume 4.175560277174E+22
Surface area 5.8205045012701E+15
Circumference 135224458.51759

Square

Length = n
Perimeter 86086564
Area 463181031332881
Diagonal 30436196.586725

Cube

Length = n
Surface area 2779086187997286
Volume 9.968415874356E+21
Space diagonal 37276575.674257

Equilateral Triangle

Length = n
Perimeter 64564923
Area 2.0056326984268E+14
Altitude 18638287.837129

Triangular Pyramid

Length = n
Surface area 2.0056326984268E+14
Volume 1.1747890770741E+21
Height 10145398.862242