21542871 (number)

21542871 is an odd 8-digits composite number following 21542870 and preceding 21542872. In scientific notation, it is written as 2.1542871 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 12023424 positive integers (up to 21542871) that are relatively prime to 21542871.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred forty-two thousand eight hundred seventy-one

Notation

Scientific notation 2.1542871 × 10^7
Engineering notation 2.1542871 × 10^6

Prime Factorization of 21542871

Prime Factorization 7 × 3 × 43 × 23857

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21542871
Product of the distinct prime numbers

The prime factorization of 21542871 is 7 × 3 × 43 × 23857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 33, 73, 541, 975, 5278, 5524, 13090, 43001, 436979, 303189, 2714597, 3717780, 9397953, 61738726, 111899923, 562787905, 2605149764, 5856674577

Basic calculations (n = 21542871)

Multiplication

n×y
n×2 43085742
n×3 64628613
n×4 86171484
n×5 107714355

Division

n÷y
n÷2 10771435.5
n÷3 7180957
n÷3 5385717.75
n÷5 4308574.2

Exponentiation

ny
n2 464095290922641
n3 9.9979449840539E+21
n4 2.1538443905657E+29
n5 4.6399991860031E+36

Nth Root

y√n
2√n 4641.4298443475
3√n 278.2495860804
4√n 68.128040074169
5√n 29.286044380351

Divisors of 21542871

1, 3, 7, 21, 43, 129, 301, 903, 23857, 71571, 166999, 500997, 1025851, 3077553, 7180957, 21542871

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 -21542870
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 21542871 can be divided by 16 positive divisors. The sum of these divisors (counting 21542871) is 1, the average is 0.0625.

Base conversion 21542871

Base System Value
2 Binary 1010010001011011111010111
3 Ternary 1111112111021010
4 Quaternary 1102023133113
5 Quinary 21003332441
6 Senary 2045423303
8 Octal 122133727
10 Decimal 21542871
12 Duodecimal 726ab33
16 Hexadecimal 148b7d7
20 Vigesimal 6ech3b
36 Base36 ctql3

Cryptographic Hash Functions

md5 3e646be753efa861e59fc88bac255be1
sha1 d3c0001213131948aa48f9e03f9fb2a861d28d24
sha256 090e9c6b2af76524e6c5acbd7e347263d875cdbf4d6dae9354d56294f1bdfbef
sha512 cad0e0037fd12f70cfaf11a821f2c4edf0fa5921ab2e47360ccf1c24cf16eaa0523045aeb36a3640f83ca7a2cb01edd952cdf9c4aacdb121c3bfcc59ecf56959
ripemd-160 4150d49f5ae807cb312ec68af20b9c214a90a4a4

21542871 as geometric shapes

Circle

Radius = n
Diameter 43085742
Circumference 135357850.54167
Area 1.4579983565282E+15

Sphere

Radius = n
Volume 4.1879294017198E+22
Surface area 5.8319934261127E+15
Circumference 135357850.54167

Square

Length = n
Perimeter 86171484
Area 464095290922641
Diagonal 30466220.340654

Cube

Length = n
Surface area 2784571745535846
Volume 9.9979449840539E+21
Space diagonal 37313347.112902

Equilateral Triangle

Length = n
Perimeter 64628613
Area 2.0095915585787E+14
Altitude 18656673.556451

Triangular Pyramid

Length = n
Surface area 2.0095915585787E+14
Volume 1.1782691160258E+21
Height 10155406.780218