21087910 (number)

21087910 is an even 8-digits composite number following 21087909 and preceding 21087911. In scientific notation, it is written as 2.1087910 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 7991136 positive integers (up to 21087910) that are relatively prime to 21087910.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand nine hundred ten

Notation

Scientific notation 2.1087910 × 10^7
Engineering notation 2.1087910 × 10^6

Prime Factorization of 21087910

Prime Factorization 2 × 5 × 19 × 110989

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21087910
Product of the distinct prime numbers

The prime factorization of 21087910 is 2 × 5 × 19 × 110989. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 50, 50, 841, 977, 7016, 9388, 40714, 90297, 76703, 674915, 4631187, 1841181, 9527132, 57629105, 96631367, 578166, 5938974103, 9005700197

Basic calculations (n = 21087910)

Multiplication

n×y
n×2 42175820
n×3 63263730
n×4 84351640
n×5 105439550

Division

n÷y
n÷2 10543955
n÷3 7029303.3333333
n÷3 5271977.5
n÷5 4217582

Exponentiation

ny
n2 444699948168100
n3 9.3777924839736E+21
n4 1.9775804390071E+29
n5 4.1703038315542E+36

Nth Root

y√n
2√n 4592.157445036
3√n 276.27686108866
4√n 67.76545908526
5√n 29.161288391579

Divisors of 21087910

1, 2, 5, 10, 19, 38, 95, 190, 110989, 221978, 554945, 1109890, 2108791, 4217582, 10543955, 21087910

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 -21087909
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 21087910 can be divided by 16 positive divisors. The sum of these divisors (counting 21087910) is 1, the average is 0.0625.

Base conversion 21087910

Base System Value
2 Binary 1010000011100011010100110
3 Ternary 1110200101011201
4 Quaternary 1100130122212
5 Quinary 20344303120
6 Senary 2031553114
8 Octal 120343246
10 Decimal 21087910
12 Duodecimal 708b79a
16 Hexadecimal 141c6a6
20 Vigesimal 6bfjfa
36 Base36 cjzja

Cryptographic Hash Functions

md5 3e6d82202e871275071312c72cd614ec
sha1 d10266e3ac3c0cdc503f888d830a42ba81f2c9c5
sha256 988ea14b0207bd151138b992f74a14bd092c589f269627fb9e61658d63fa66c0
sha512 0538458437ae822d8ad3c0a2c760516bc783507f8f18beee205d6d04bdaf016535ee29130d7ed0773e8acd5626a1ba691bc5d5ccf59f99aaa1ffcf2200e62107
ripemd-160 778362050986da4695164eb96005c217456bd293

21087910 as geometric shapes

Circle

Radius = n
Diameter 42175820
Circumference 132499246.27113
Area 1.3970660902167E+15

Sphere

Radius = n
Volume 3.9281605299388E+22
Surface area 5.5882643608667E+15
Circumference 132499246.27113

Square

Length = n
Perimeter 84351640
Area 444699948168100
Diagonal 29822808.324103

Cube

Length = n
Surface area 2668199689008600
Volume 9.3777924839736E+21
Space diagonal 36525331.54544

Equilateral Triangle

Length = n
Perimeter 63263730
Area 1.925607260876E+14
Altitude 18262665.77272

Triangular Pyramid

Length = n
Surface area 1.925607260876E+14
Volume 1.1051834429963E+21
Height 9940936.1080344