21388992 (number)

21388992 is an even 8-digits composite number following 21388991 and preceding 21388993. In scientific notation, it is written as 2.1388992 × 10^7. The sum of its digits is 42. It has a total of 9 prime factors and 56 positive divisors. There are 6709248 positive integers (up to 21388992) that are relatively prime to 21388992.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-eight thousand nine hundred ninety-two

Notation

Scientific notation 2.1388992 × 10^7
Engineering notation 2.1388992 × 10^6

Prime Factorization of 21388992

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 3 × 17 × 6553

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 668406
Product of the distinct prime numbers

The prime factorization of 21388992 is 2 × 2 × 2 × 2 × 2 × 2 × 3 × 17 × 6553. Since it has a total of 9 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21388992)

Multiplication

n×y
n×2 42777984
n×3 64166976
n×4 85555968
n×5 106944960

Division

n÷y
n÷2 10694496
n÷3 7129664
n÷3 5347248
n÷5 4277798.4

Exponentiation

ny
n2 457488978776064
n3 9.7852281071294E+21
n4 2.0929616570157E+29
n5 4.4766340138215E+36

Nth Root

y√n
2√n 4624.82345609
3√n 277.58549755784
4√n 68.00605455465
5√n 29.244086755193

Divisors of 21388992

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21388991
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21388992 can be divided by 56 positive divisors. The sum of these divisors (counting 21388992) is 1, the average is 0.017857142857143.

Base conversion 21388992

Base System Value
2 Binary 1010001100101111011000000
3 Ternary 1111020200011220
4 Quaternary 1101211323000
5 Quinary 20433421432
6 Senary 2042235040
8 Octal 121457300
10 Decimal 21388992
12 Duodecimal 71b5a80
16 Hexadecimal 1465ec0
20 Vigesimal 6ddc9c
36 Base36 cqfuo

Cryptographic Hash Functions

md5 194ba942e88e5cbcaa25217a7597e0ab
sha1 58e314dfb9da7d09309ca5c308508666a2097a44
sha256 3265c528c436a6a097d172533b6e460b3fc3d27d423c51c557441000ce02cc49
sha512 3f28cb0cebc33c6c8818b6a658d13acf165361c094fd8d3497c64f81765090c9499602763ba8e6cd3640701b79a92af2942cd4ba1c8c68b1c8016b9313d5f566
ripemd-160 7f3a2e482fd5566407bbecd7235f15379f58211e

21388992 as geometric shapes

Circle

Radius = n
Diameter 42777984
Circumference 134391000.26978
Area 1.4372440148212E+15

Sphere

Radius = n
Volume 4.0988267646744E+22
Surface area 5.7489760592847E+15
Circumference 134391000.26978

Square

Length = n
Perimeter 85555968
Area 457488978776064
Diagonal 30248602.57189

Cube

Length = n
Surface area 2744933872656384
Volume 9.7852281071294E+21
Space diagonal 37046820.866684

Equilateral Triangle

Length = n
Perimeter 64166976
Area 1.9809853878574E+14
Altitude 18523410.433342

Triangular Pyramid

Length = n
Surface area 1.9809853878574E+14
Volume 1.1532001916681E+21
Height 10082867.523963