21490725 (number)

21490725 is an odd 8-digits composite number following 21490724 and preceding 21490726. In scientific notation, it is written as 2.1490725 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 11461680 positive integers (up to 21490725) that are relatively prime to 21490725.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1490725 × 10^7
Engineering notation 2.1490725 × 10^6

Prime Factorization of 21490725

Prime Factorization 3 × 25 × 286543

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21490725
Product of the distinct prime numbers

The prime factorization of 21490725 is 3 × 25 × 286543. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21490725)

Multiplication

n×y
n×2 42981450
n×3 64472175
n×4 85962900
n×5 107453625

Division

n÷y
n÷2 10745362.5
n÷3 7163575
n÷3 5372681.25
n÷5 4298145

Exponentiation

ny
n2 461851261025625
n3 9.9255184416049E+21
n4 2.1330658731096E+29
n5 4.5841132085883E+36

Nth Root

y√n
2√n 4635.8089908882
3√n 278.02489727503
4√n 68.086775447867
5√n 29.271852856388

Divisors of 21490725

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 -21490724
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 21490725 can be divided by 8 positive divisors. The sum of these divisors (counting 21490725) is 1, the average is 0.125.

Base conversion 21490725

Base System Value
2 Binary 1010001111110110000100101
3 Ternary 1111102211201210
4 Quaternary 1101332300211
5 Quinary 21000200400
6 Senary 2044342033
8 Octal 121766045
10 Decimal 21490725
12 Duodecimal 7244919
16 Hexadecimal 147ec25
20 Vigesimal 6e66g5
36 Base36 csmcl

Cryptographic Hash Functions

md5 06ad564aee6b9e7c9c7b1109450d93cb
sha1 10493a522bd9693d1c939007143a95374dea92ea
sha256 9f8f9a1b531db6599c781c3ecb873d52b0f3ebf71ed5fef8339adaf3e98593b7
sha512 13270a76c947b09c7501d2e66c909c6fe7e80e5c42d5b40c274098a1ce3c79de20594eee59aed96851aa7a96e44f32a6857a1b0ffcb6c5ff999003ae66ce1f02
ripemd-160 7a4f3e7b494ce42f8e3086a887c71401622e23c1

21490725 as geometric shapes

Circle

Radius = n
Diameter 42981450
Circumference 135030207.56064
Area 1.4509485286893E+15

Sphere

Radius = n
Volume 4.1575914425621E+22
Surface area 5.8037941147571E+15
Circumference 135030207.56064

Square

Length = n
Perimeter 85962900
Area 461851261025625
Diagonal 30392474.760231

Cube

Length = n
Surface area 2771107566153750
Volume 9.9255184416049E+21
Space diagonal 37223027.591491

Equilateral Triangle

Length = n
Perimeter 64472175
Area 1.9998746240903E+14
Altitude 18611513.795745

Triangular Pyramid

Length = n
Surface area 1.9998746240903E+14
Volume 1.1697335661418E+21
Height 10130824.920077