21131408 (number)

21131408 is an even 8-digits composite number following 21131407 and preceding 21131409. In scientific notation, it is written as 2.1131408 × 10^7. The sum of its digits is 20. It has a total of 6 prime factors and 20 positive divisors. There are 9944064 positive integers (up to 21131408) that are relatively prime to 21131408.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand four hundred eight

Notation

Scientific notation 2.1131408 × 10^7
Engineering notation 2.1131408 × 10^6

Prime Factorization of 21131408

Prime Factorization 2 × 2 × 2 × 2 × 17 × 77689

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2641426
Product of the distinct prime numbers

The prime factorization of 21131408 is 2 × 2 × 2 × 2 × 17 × 77689. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 10, 49, 63, 445, 860, 8403, 4864, 48437, 99031, 460295, 393263, 4203664, 2374438, 83893302, 47795583, 149646395, 856654187, 685293993, 816495406

Basic calculations (n = 21131408)

Multiplication

n×y
n×2 42262816
n×3 63394224
n×4 84525632
n×5 105657040

Division

n÷y
n÷2 10565704
n÷3 7043802.6666667
n÷3 5282852
n÷5 4226281.6

Exponentiation

ny
n2 446536404062464
n3 9.4359429410968E+21
n4 1.9939476015304E+29
n5 4.2134920298559E+36

Nth Root

y√n
2√n 4596.8911233572
3√n 276.46668924991
4√n 67.80037701486
5√n 29.173308667059

Divisors of 21131408

1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77689, 155378, 310756, 621512, 1243024, 1320713, 2641426, 5282852, 10565704, 21131408

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 -21131407
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 21131408 can be divided by 20 positive divisors. The sum of these divisors (counting 21131408) is 1, the average is 0.05.

Base conversion 21131408

Base System Value
2 Binary 1010000100111000010010000
3 Ternary 1110202120211202
4 Quaternary 1100213002100
5 Quinary 20402201113
6 Senary 2032530332
8 Octal 120470220
10 Decimal 21131408
12 Duodecimal 70b09a8
16 Hexadecimal 1427090
20 Vigesimal 6c18a8
36 Base36 ckx3k

Cryptographic Hash Functions

md5 cd5c705db0e0c7a94442141c2c2ce9b2
sha1 64ef7512bc69487feecae4999b874a218aa0dd83
sha256 97324237d38a5d8dff92d7a9a3e2ca8d512e8ecc70044bf2a39673a3988e46c3
sha512 461309c03a1badd05e65511519951ccd4c38254c28a3ec03a3db2a8beaa7e23a05737fafaf048d4151c2764635861b622e4b617ea8175268cec41a62e0b26627
ripemd-160 8151d5c8320a08cc09c13f8faa72256e743353b3

21131408 as geometric shapes

Circle

Radius = n
Diameter 42262816
Circumference 132772552.26562
Area 1.402835486563E+15

Sphere

Radius = n
Volume 3.9525185364589E+22
Surface area 5.6113419462522E+15
Circumference 132772552.26562

Square

Length = n
Perimeter 84525632
Area 446536404062464
Diagonal 29884323.785639

Cube

Length = n
Surface area 2679218424374784
Volume 9.4359429410968E+21
Space diagonal 36600672.291467

Equilateral Triangle

Length = n
Perimeter 63394224
Area 1.9335593481632E+14
Altitude 18300336.145734

Triangular Pyramid

Length = n
Surface area 1.9335593481632E+14
Volume 1.1120365400898E+21
Height 9961441.2618798