21361808 (number)

21361808 is an even 8-digits composite number following 21361807 and preceding 21361809. In scientific notation, it is written as 2.1361808 × 10^7. The sum of its digits is 29. It has a total of 6 prime factors and 20 positive divisors. There are 9859200 positive integers (up to 21361808) that are relatively prime to 21361808.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred sixty-one thousand eight hundred eight

Notation

Scientific notation 2.1361808 × 10^7
Engineering notation 2.1361808 × 10^6

Prime Factorization of 21361808

Prime Factorization 2 × 2 × 2 × 2 × 13 × 102701

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2670226
Product of the distinct prime numbers

The prime factorization of 21361808 is 2 × 2 × 2 × 2 × 13 × 102701. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 7, 82, 52, 587, 221, 5610, 5655, 90376, 81137, 681029, 726410, 2603547, 454005, 59045028, 63572905, 630108356, 271309305, 4115618194, 9286593720

Basic calculations (n = 21361808)

Multiplication

n×y
n×2 42723616
n×3 64085424
n×4 85447232
n×5 106809040

Division

n÷y
n÷2 10680904
n÷3 7120602.6666667
n÷3 5340452
n÷5 4272361.6

Exponentiation

ny
n2 456326841028864
n3 9.7479663633051E+21
n4 2.0823418584338E+29
n5 4.4482586970226E+36

Nth Root

y√n
2√n 4621.8835987073
3√n 277.46785007514
4√n 67.984436444729
5√n 29.236649511724

Divisors of 21361808

1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102701, 205402, 410804, 821608, 1335113, 1643216, 2670226, 5340452, 10680904, 21361808

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21361807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21361808 can be divided by 20 positive divisors. The sum of these divisors (counting 21361808) is 1, the average is 0.05.

Base conversion 21361808

Base System Value
2 Binary 1010001011111010010010000
3 Ternary 1111012021220002
4 Quaternary 1101133102100
5 Quinary 20432034213
6 Senary 2041505132
8 Octal 121372220
10 Decimal 21361808
12 Duodecimal 71a21a8
16 Hexadecimal 145f490
20 Vigesimal 6da4a8
36 Base36 cpuvk

Cryptographic Hash Functions

md5 ffab2c8e16e6a8e1cee74cd9a465d820
sha1 6cae322281e746ed3812f31da1f3a8fffc5ef3fd
sha256 1c1da5bce55a939ae248ef1856c04522dab0b564c4ee121ef3afbac1c79ba2ee
sha512 999d6fdad15e2b6ca58740629df816af766a40bf4aa31e76897023d4335febe5e5b68be5a87497455f9428b1207db34ac1237e01f0632ea464a35d9b25d16e1b
ripemd-160 01a20b4cd84a21f0720bd5fe7e8042c6ce9d48c7

21361808 as geometric shapes

Circle

Radius = n
Diameter 42723616
Circumference 134220198.16039
Area 1.4335930514121E+15

Sphere

Radius = n
Volume 4.08321860192E+22
Surface area 5.7343722056485E+15
Circumference 134220198.16039

Square

Length = n
Perimeter 85447232
Area 456326841028864
Diagonal 30210158.59041

Cube

Length = n
Surface area 2737961046173184
Volume 9.7479663633051E+21
Space diagonal 36999736.797531

Equilateral Triangle

Length = n
Perimeter 64085424
Area 1.9759531837985E+14
Altitude 18499868.398766

Triangular Pyramid

Length = n
Surface area 1.9759531837985E+14
Volume 1.1488088530452E+21
Height 10070052.86347