21497871 (number)

21497871 is an odd 8-digits composite number following 21497870 and preceding 21497872. In scientific notation, it is written as 2.1497871 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 14320152 positive integers (up to 21497871) that are relatively prime to 21497871.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-seven thousand eight hundred seventy-one

Notation

Scientific notation 2.1497871 × 10^7
Engineering notation 2.1497871 × 10^6

Prime Factorization of 21497871

Prime Factorization 3 × 1723 × 4159

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21497871
Product of the distinct prime numbers

The prime factorization of 21497871 is 3 × 1723 × 4159. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21497871)

Multiplication

n×y
n×2 42995742
n×3 64493613
n×4 85991484
n×5 107489355

Division

n÷y
n÷2 10748935.5
n÷3 7165957
n÷3 5374467.75
n÷5 4299574.2

Exponentiation

ny
n2 462158457532641
n3 9.9354229015957E+21
n4 2.1359043986895E+29
n5 4.5917397231359E+36

Nth Root

y√n
2√n 4636.5796660901
3√n 278.05570972623
4√n 68.092434719946
5√n 29.273799266705

Divisors of 21497871

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 -21497870
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 21497871 can be divided by 8 positive divisors. The sum of these divisors (counting 21497871) is 1, the average is 0.125.

Base conversion 21497871

Base System Value
2 Binary 1010010000000100000001111
3 Ternary 1111110012112110
4 Quaternary 1102000200033
5 Quinary 21000412441
6 Senary 2044435103
8 Octal 122004017
10 Decimal 21497871
12 Duodecimal 7248a93
16 Hexadecimal 148080f
20 Vigesimal 6e74db
36 Base36 csrv3

Cryptographic Hash Functions

md5 39a548db4bfbd10ef1299df0baa4d122
sha1 ffccd9776cc99b6053b0c4aa9bb69c350307693c
sha256 a752ba8f3d8cbbd6e369983668abb9c092f1590197276389a6f8d032ea1bf872
sha512 4eff7d2b0a5d0f2fab629b29e234278e163e58206230bfa9c1b7503f79fcb13a415bbfc7f013d11190bc23ecb7e5a2ad7bfd3d98d1ee8acf5f6d169996882c17
ripemd-160 ee3d0dd3dd0590294c12c3d61ee9baa6dbb18203

21497871 as geometric shapes

Circle

Radius = n
Diameter 42995742
Circumference 135075107.20284
Area 1.4519136149789E+15

Sphere

Radius = n
Volume 4.1617402130614E+22
Surface area 5.8076544599157E+15
Circumference 135075107.20284

Square

Length = n
Perimeter 85991484
Area 462158457532641
Diagonal 30402580.730347

Cube

Length = n
Surface area 2772950745195846
Volume 9.9354229015957E+21
Space diagonal 37235404.826562

Equilateral Triangle

Length = n
Perimeter 64493613
Area 2.0012048239855E+14
Altitude 18617702.413281

Triangular Pyramid

Length = n
Surface area 2.0012048239855E+14
Volume 1.1709008179457E+21
Height 10134193.576782