21691408 (number)

21691408 is an even 8-digits composite number following 21691407 and preceding 21691409. In scientific notation, it is written as 2.1691408 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 10 positive divisors. There are 10845696 positive integers (up to 21691408) that are relatively prime to 21691408.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1691408 × 10^7
Engineering notation 2.1691408 × 10^6

Prime Factorization of 21691408

Prime Factorization 2 × 2 × 2 × 2 × 1355713

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2711426
Product of the distinct prime numbers

The prime factorization of 21691408 is 2 × 2 × 2 × 2 × 1355713. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 2, 93, 79, 557, 232, 2428, 5303, 56838, 72825, 788163, 996642, 9279722, 4443854, 53601289, 27171239, 843976457, 498759841, 533783388, 142504698

Basic calculations (n = 21691408)

Multiplication

n×y
n×2 43382816
n×3 65074224
n×4 86765632
n×5 108457040

Division

n÷y
n÷2 10845704
n÷3 7230469.3333333
n÷3 5422852
n÷5 4338281.6

Exponentiation

ny
n2 470517181022464
n3 1.0206180144568E+22
n4 2.2138641763733E+29
n5 4.8021831106296E+36

Nth Root

y√n
2√n 4657.4035685133
3√n 278.88762748051
4√n 68.245172492369
5√n 29.326318614814

Divisors of 21691408

1, 2, 4, 8, 16, 1355713, 2711426, 5422852, 10845704, 21691408

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21691407
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21691408 can be divided by 10 positive divisors. The sum of these divisors (counting 21691408) is 1, the average is 0.1.

Base conversion 21691408

Base System Value
2 Binary 1010010101111110000010000
3 Ternary 1111211001000111
4 Quaternary 1102233300100
5 Quinary 21023111113
6 Senary 2052531104
8 Octal 122576020
10 Decimal 21691408
12 Duodecimal 7320a94
16 Hexadecimal 14afc10
20 Vigesimal 6fb8a8
36 Base36 cwx74

Cryptographic Hash Functions

md5 95163b432b34231b1faba3a68f8455b0
sha1 a73f7ad346d6038e6423a990f706e2d99f3a8939
sha256 295d3ae97a5acd20759a046588f5d57dccb61091b6eb644492578a667c285de2
sha512 2dafd6b78f4bbae433ee547295b320b33f82130b8252ae52e1afc2da45ed890b18f7d54411539888cfbf02a2467efdd8efc261a9cc2384ac4bd70ffeb196bd2e
ripemd-160 454549549e552981c2b58e54a63d622d73a28581

21691408 as geometric shapes

Circle

Radius = n
Diameter 43382816
Circumference 136291136.03764
Area 1.478173319288E+15

Sphere

Radius = n
Volume 4.2751547417852E+22
Surface area 5.9126932771518E+15
Circumference 136291136.03764

Square

Length = n
Perimeter 86765632
Area 470517181022464
Diagonal 30676283.380568

Cube

Length = n
Surface area 2823103086134784
Volume 1.0206180144568E+22
Space diagonal 37570620.743706

Equilateral Triangle

Length = n
Perimeter 65074224
Area 2.0373991584125E+14
Altitude 18785310.371853

Triangular Pyramid

Length = n
Surface area 2.0373991584125E+14
Volume 1.2028098650393E+21
Height 10225427.793523