21285816 (number)

21285816 is an even 8-digits composite number following 21285815 and preceding 21285817. In scientific notation, it is written as 2.1285816 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors. There are 7095264 positive integers (up to 21285816) that are relatively prime to 21285816.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred eighty-five thousand eight hundred sixteen

Notation

Scientific notation 2.1285816 × 10^7
Engineering notation 2.1285816 × 10^6

Prime Factorization of 21285816

Prime Factorization 2 × 2 × 2 × 3 × 886909

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5321454
Product of the distinct prime numbers

The prime factorization of 21285816 is 2 × 2 × 2 × 3 × 886909. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 9, 25, 34, 505, 97, 3864, 9024, 91134, 40000, 681761, 278157, 7013573, 1226519, 76836300, 72543698, 357559906, 940723994, 8836631065, 7922203476

Basic calculations (n = 21285816)

Multiplication

n×y
n×2 42571632
n×3 63857448
n×4 85143264
n×5 106429080

Division

n÷y
n÷2 10642908
n÷3 7095272
n÷3 5321454
n÷5 4257163.2

Exponentiation

ny
n2 453085962785856
n3 9.6443044360426E+21
n4 2.0528688967359E+29
n5 4.3696989608043E+36

Nth Root

y√n
2√n 4613.6553837494
3√n 277.13843992373
4√n 67.923894056138
5√n 29.215818693684

Divisors of 21285816

1, 2, 3, 4, 6, 8, 12, 24, 886909, 1773818, 2660727, 3547636, 5321454, 7095272, 10642908, 21285816

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 -21285815
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 21285816 can be divided by 16 positive divisors. The sum of these divisors (counting 21285816) is 1, the average is 0.0625.

Base conversion 21285816

Base System Value
2 Binary 1010001001100101110111000
3 Ternary 1111001102122120
4 Quaternary 1101030232320
5 Quinary 20422121231
6 Senary 2040121240
8 Octal 121145670
10 Decimal 21285816
12 Duodecimal 7166220
16 Hexadecimal 144cbb8
20 Vigesimal 6d0eag
36 Base36 co88o

Cryptographic Hash Functions

md5 a5865a546a2582ca48c12ae9f221c27a
sha1 15d47807af57f23ed5d18ecc4ccc162cd08cb1ed
sha256 0668a8bb788e56bd49bfb648e6f237a68b287b3db29d38e2d1a438bc3846d1ac
sha512 9b5b1fb145f83d4b40e4dd7265607756243da2a6d3fdf0cadaacfd56768299a1c74354732083cf3bbead6f0dd23985f3842cf473d258a47c5bd12abbd66f5a63
ripemd-160 20a956d1f0f02338f605a692ca0aae8abeb49c11

21285816 as geometric shapes

Circle

Radius = n
Diameter 42571632
Circumference 133742726.34253
Area 1.4234115321327E+15

Sphere

Radius = n
Volume 4.0397967953673E+22
Surface area 5.6936461285308E+15
Circumference 133742726.34253

Square

Length = n
Perimeter 85143264
Area 453085962785856
Diagonal 30102689.673378

Cube

Length = n
Surface area 2718515776715136
Volume 9.6443044360426E+21
Space diagonal 36868114.792563

Equilateral Triangle

Length = n
Perimeter 63857448
Area 1.9619197693534E+14
Altitude 18434057.396281

Triangular Pyramid

Length = n
Surface area 1.9619197693534E+14
Volume 1.1365921777589E+21
Height 10034229.891126