21491925 (number)

21491925 is an odd 8-digits composite number following 21491924 and preceding 21491926. In scientific notation, it is written as 2.1491925 × 10^7. The sum of its digits is 33. It has a total of 6 prime factors and 64 positive divisors. There are 8743680 positive integers (up to 21491925) that are relatively prime to 21491925.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491925 × 10^7
Engineering notation 2.1491925 × 10^6

Prime Factorization of 21491925

Prime Factorization 25 × 7 × 3 × 13 × 67 × 47

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 21491925
Product of the distinct prime numbers

The prime factorization of 21491925 is 25 × 7 × 3 × 13 × 67 × 47. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491925)

Multiplication

n×y
n×2 42983850
n×3 64475775
n×4 85967700
n×5 107459625

Division

n÷y
n÷2 10745962.5
n÷3 7163975
n÷3 5372981.25
n÷5 4298385

Exponentiation

ny
n2 461902840205625
n3 9.9271811989863E+21
n4 2.1335423379002E+29
n5 4.5853931910476E+36

Nth Root

y√n
2√n 4635.9384163295
3√n 278.03007196732
4√n 68.087725886018
5√n 29.272179745676

Divisors of 21491925

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491924
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491925 can be divided by 64 positive divisors. The sum of these divisors (counting 21491925) is 1, the average is 0.015625.

Base conversion 21491925

Base System Value
2 Binary 1010001111111000011010101
3 Ternary 1111102220101020
4 Quaternary 1101333003111
5 Quinary 21000220200
6 Senary 2044351353
8 Octal 121770325
10 Decimal 21491925
12 Duodecimal 7245559
16 Hexadecimal 147f0d5
20 Vigesimal 6e69g5
36 Base36 csn9x

Cryptographic Hash Functions

md5 7176696ecff6eb90c6bbdd1134e51678
sha1 e805886ad8dca97565c9663c79b83b379c6f5835
sha256 eafdb3943dd0b49255543265d49443c1e13fdab29a82abda847c089c128e6c34
sha512 c56c6d11c76623a7625d0753fafba0d43adafdc11f331827c2d2472bf2acfc7a58f4e305e46aeed6427ccd2afb8d9e7c70bce951029930ca648de609175e41a4
ripemd-160 2f86d5bb3f313ec6baa87146b5ffe054b1b3f255

21491925 as geometric shapes

Circle

Radius = n
Diameter 42983850
Circumference 135037747.38301
Area 1.4511105694623E+15

Sphere

Radius = n
Volume 4.1582879367453E+22
Surface area 5.804442277849E+15
Circumference 135037747.38301

Square

Length = n
Perimeter 85967700
Area 461902840205625
Diagonal 30394171.816505

Cube

Length = n
Surface area 2771417041233750
Volume 9.9271811989863E+21
Space diagonal 37225106.05246

Equilateral Triangle

Length = n
Perimeter 64475775
Area 2.0000979684913E+14
Altitude 18612553.02623

Triangular Pyramid

Length = n
Surface area 2.0000979684913E+14
Volume 1.1699295239785E+21
Height 10131390.605502