21491625 (number)

21491625 is an odd 8-digits composite number following 21491624 and preceding 21491626. In scientific notation, it is written as 2.1491625 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 11366400 positive integers (up to 21491625) that are relatively prime to 21491625.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand six hundred twenty-five

Notation

Scientific notation 2.1491625 × 10^7
Engineering notation 2.1491625 × 10^6

Prime Factorization of 21491625

Prime Factorization 15 × 25 × 223 × 257

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491625
Product of the distinct prime numbers

The prime factorization of 21491625 is 15 × 25 × 223 × 257. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 84, 56, 310, 607, 8449, 2387, 39352, 69724, 837674, 777349, 7364808, 5200135, 14090697, 42805223, 446663890, 787849996, 3945741979, 9981581499

Basic calculations (n = 21491625)

Multiplication

n×y
n×2 42983250
n×3 64474875
n×4 85966500
n×5 107458125

Division

n÷y
n÷2 10745812.5
n÷3 7163875
n÷3 5372906.25
n÷5 4298325

Exponentiation

ny
n2 461889945140625
n3 9.9267654922329E+21
n4 2.1334232142201E+29
n5 4.5850731686313E+36

Nth Root

y√n
2√n 4635.906060308
3√n 278.02877831231
4√n 68.087488280212
5√n 29.272098024723

Divisors of 21491625

1, 15, 25, 223, 257, 375, 3345, 3855, 5575, 6425, 57311, 83625, 96375, 859665, 1432775, 21491625

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 -21491624
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 21491625 can be divided by 16 positive divisors. The sum of these divisors (counting 21491625) is 1, the average is 0.0625.

Base conversion 21491625

Base System Value
2 Binary 1010001111110111110101001
3 Ternary 1111102212222010
4 Quaternary 1101332332221
5 Quinary 21000213000
6 Senary 2044350133
8 Octal 121767651
10 Decimal 21491625
12 Duodecimal 7245349
16 Hexadecimal 147efa9
20 Vigesimal 6e6915
36 Base36 csn1l

Cryptographic Hash Functions

md5 e02243f45a5ab7383694d532a856273b
sha1 b23e88d5033e45ab821c14ccf15a7003dae7f068
sha256 4a1ec0517e83bb37c3a528454bc12e2f88b948dbaede35791c804787c8cc4e90
sha512 a5d50f77326dc5daf09f46e9027ff5e69c89fcc01110f2ace80d75327c0ce0732dedcedc9ce4d337a61bfd431fad90a4e9ee1f6e6766ae64fb68dd1d53cd6410
ripemd-160 8ed7ea411344f344ac81bce2117982daa8a49fc5

21491625 as geometric shapes

Circle

Radius = n
Diameter 42983250
Circumference 135035862.42741
Area 1.4510700584208E+15

Sphere

Radius = n
Volume 4.1581138059077E+22
Surface area 5.8042802336831E+15
Circumference 135035862.42741

Square

Length = n
Perimeter 85966500
Area 461889945140625
Diagonal 30393747.552437

Cube

Length = n
Surface area 2771339670843750
Volume 9.9267654922329E+21
Space diagonal 37224586.437217

Equilateral Triangle

Length = n
Perimeter 64474875
Area 2.0000421312219E+14
Altitude 18612293.218609

Triangular Pyramid

Length = n
Surface area 2.0000421312219E+14
Volume 1.1698805324677E+21
Height 10131249.184146