21493904 (number)

21493904 is an even 8-digits composite number following 21493903 and preceding 21493905. In scientific notation, it is written as 2.1493904 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 10 positive divisors. There are 10746944 positive integers (up to 21493904) that are relatively prime to 21493904.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand nine hundred four

Notation

Scientific notation 2.1493904 × 10^7
Engineering notation 2.1493904 × 10^6

Prime Factorization of 21493904

Prime Factorization 2 × 2 × 2 × 2 × 1343369

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2686738
Product of the distinct prime numbers

The prime factorization of 21493904 is 2 × 2 × 2 × 2 × 1343369. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21493904)

Multiplication

n×y
n×2 42987808
n×3 64481712
n×4 85975616
n×5 107469520

Division

n÷y
n÷2 10746952
n÷3 7164634.6666667
n÷3 5373476
n÷5 4298780.8

Exponentiation

ny
n2 461987909161216
n3 9.9299237686719E+21
n4 2.1343282821115E+29
n5 4.587504720019E+36

Nth Root

y√n
2√n 4636.1518525605
3√n 278.03860547661
4√n 68.089293229997
5√n 29.272718808697

Divisors of 21493904

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 -21493903
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 21493904 can be divided by 10 positive divisors. The sum of these divisors (counting 21493904) is 1, the average is 0.1.

Base conversion 21493904

Base System Value
2 Binary 1010001111111100010010000
3 Ternary 1111110000002112
4 Quaternary 1101333202100
5 Quinary 21000301104
6 Senary 2044404452
8 Octal 121774220
10 Decimal 21493904
12 Duodecimal 7246728
16 Hexadecimal 147f890
20 Vigesimal 6e6ef4
36 Base36 csosw

Cryptographic Hash Functions

md5 44423e9fe7585b8629577a31d741a23f
sha1 5a86040f45ab57ec059c6bf775ba2cbbe22c7624
sha256 fa6d27d61b228013ea3062ca34d9498f58a45122fcb06a1b680cf810955442c4
sha512 64c5e058bd0ed5db95d0ce201cb9c269b41e2edf52eb80058fdee183197cc04754d13470ee91e300ee304317d0a3a40c22dae0037fd2e4beed322825ee527d40
ripemd-160 7aebbfa63ef87d3d0a8072473cb9dd8164c9be54

21493904 as geometric shapes

Circle

Radius = n
Diameter 42987808
Circumference 135050181.80673
Area 1.4513778214682E+15

Sphere

Radius = n
Volume 4.1594367416488E+22
Surface area 5.8055112858727E+15
Circumference 135050181.80673

Square

Length = n
Perimeter 85975616
Area 461987909161216
Diagonal 30396970.545145

Cube

Length = n
Surface area 2771927454967296
Volume 9.9299237686719E+21
Space diagonal 37228533.781008

Equilateral Triangle

Length = n
Perimeter 64481712
Area 2.0004663278744E+14
Altitude 18614266.890504

Triangular Pyramid

Length = n
Surface area 2.0004663278744E+14
Volume 1.1702527389156E+21
Height 10132323.515048