21086490 (number)

21086490 is an even 8-digits composite number following 21086489 and preceding 21086491. In scientific notation, it is written as 2.1086490 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 5569664 positive integers (up to 21086490) that are relatively prime to 21086490.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-six thousand four hundred ninety

Notation

Scientific notation 2.1086490 × 10^7
Engineering notation 2.1086490 × 10^6

Prime Factorization of 21086490

Prime Factorization 2 × 321 × 5 × 6569

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21086490
Product of the distinct prime numbers

The prime factorization of 21086490 is 2 × 321 × 5 × 6569. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 86, 69, 70, 288, 7804, 6934, 95997, 44194, 144959, 693452, 5695027, 653349, 70549121, 99269673, 592829675, 325009204, 9061269756, 7203656023

Basic calculations (n = 21086490)

Multiplication

n×y
n×2 42172980
n×3 63259470
n×4 84345960
n×5 105432450

Division

n÷y
n÷2 10543245
n÷3 7028830
n÷3 5271622.5
n÷5 4217298

Exponentiation

ny
n2 444640060520100
n3 9.3758981897565E+21
n4 1.9770478341932E+29
n5 4.1688999385236E+36

Nth Root

y√n
2√n 4592.0028310096
3√n 276.27065971627
4√n 67.764318273038
5√n 29.160895653323

Divisors of 21086490

1, 2, 5, 10, 321, 642, 1605, 3210, 6569, 13138, 32845, 65690, 2108649, 4217298, 10543245, 21086490

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 -21086489
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 21086490 can be divided by 16 positive divisors. The sum of these divisors (counting 21086490) is 1, the average is 0.0625.

Base conversion 21086490

Base System Value
2 Binary 1010000011100000100011010
3 Ternary 1110200022020010
4 Quaternary 1100130010122
5 Quinary 20344231430
6 Senary 2031542350
8 Octal 120340432
10 Decimal 21086490
12 Duodecimal 708a9b6
16 Hexadecimal 141c11a
20 Vigesimal 6bfg4a
36 Base36 cjyfu

Cryptographic Hash Functions

md5 d63b728878e78d382abffab15a286057
sha1 7620e44eeea546810df4032d3c771b1fac35aad8
sha256 8c1ccced9b0bd57cdf93f7e66c9c2af1d15fe6b471bd0d1db3202f7ece22d002
sha512 8dcbac28427ee53dda96957e56268b36879cd90c8984237e0fe77c064c3b4714324f987862ad2ab1c1aaf5bbbfe9a441f038d7e34a7f8cd667935cc1332765fd
ripemd-160 c42fab7b2c4b70a14092ec648c7969f907c7b4a2

21086490 as geometric shapes

Circle

Radius = n
Diameter 42172980
Circumference 132490324.14799
Area 1.3968779476217E+15

Sphere

Radius = n
Volume 3.9273670498326E+22
Surface area 5.5875117904867E+15
Circumference 132490324.14799

Square

Length = n
Perimeter 84345960
Area 444640060520100
Diagonal 29820800.140845

Cube

Length = n
Surface area 2667840363120600
Volume 9.3758981897565E+21
Space diagonal 36522872.033293

Equilateral Triangle

Length = n
Perimeter 63259470
Area 1.9253479397533E+14
Altitude 18261436.016647

Triangular Pyramid

Length = n
Surface area 1.9253479397533E+14
Volume 1.1049601982819E+21
Height 9940266.7136149