21491258 (number)

21491258 is an even 8-digits composite number following 21491257 and preceding 21491259. In scientific notation, it is written as 2.1491258 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 10729600 positive integers (up to 21491258) that are relatively prime to 21491258.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand two hundred fifty-eight

Notation

Scientific notation 2.1491258 × 10^7
Engineering notation 2.1491258 × 10^6

Prime Factorization of 21491258

Prime Factorization 2 × 701 × 15329

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21491258
Product of the distinct prime numbers

The prime factorization of 21491258 is 2 × 701 × 15329. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491258)

Multiplication

n×y
n×2 42982516
n×3 64473774
n×4 85965032
n×5 107456290

Division

n÷y
n÷2 10745629
n÷3 7163752.6666667
n÷3 5372814.5
n÷5 4298251.6

Exponentiation

ny
n2 461874170422564
n3 9.9262569600873E+21
n4 2.1332774930353E+29
n5 4.5846816988415E+36

Nth Root

y√n
2√n 4635.8664778011
3√n 278.02719572463
4√n 68.087197605725
5√n 29.271998051516

Divisors of 21491258

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 -21491257
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 21491258 can be divided by 8 positive divisors. The sum of these divisors (counting 21491258) is 1, the average is 0.125.

Base conversion 21491258

Base System Value
2 Binary 1010001111110111000111010
3 Ternary 1111102212110112
4 Quaternary 1101332320322
5 Quinary 21000210013
6 Senary 2044344322
8 Octal 121767072
10 Decimal 21491258
12 Duodecimal 72450a2
16 Hexadecimal 147ee3a
20 Vigesimal 6e682i
36 Base36 csmre

Cryptographic Hash Functions

md5 247f78597b8212f2f33f4a96d2fd0b06
sha1 12caf195306cf2e4d1f8bf1f5dd422a1bb52784c
sha256 f57eb086d394c5012bd4032c87ea10137403d7fab18db556694062d07cabc68f
sha512 875244fa0098b99135f04e32b9ec1736c3fa330714d1c322ded4348b8ce3819c3ca5bf09975cf4ff0c933f9a5f3ff6aa33406ceb32afee325cee87dec5fa7cbe
ripemd-160 3d557a3cd3a2006f056e239b6adf61fed55f2c1a

21491258 as geometric shapes

Circle

Radius = n
Diameter 42982516
Circumference 135033556.49841
Area 1.4510205006824E+15

Sphere

Radius = n
Volume 4.1579007924606E+22
Surface area 5.8040820027296E+15
Circumference 135033556.49841

Square

Length = n
Perimeter 85965032
Area 461874170422564
Diagonal 30393228.536059

Cube

Length = n
Surface area 2771245022535384
Volume 9.9262569600873E+21
Space diagonal 37223950.774571

Equilateral Triangle

Length = n
Perimeter 64473774
Area 1.999973824689E+14
Altitude 18611975.387286

Triangular Pyramid

Length = n
Surface area 1.999973824689E+14
Volume 1.1698206013796E+21
Height 10131076.178686