21896721 (number)

21896721 is an odd 8-digits composite number following 21896720 and preceding 21896722. In scientific notation, it is written as 2.1896721 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 10769760 positive integers (up to 21896721) that are relatively prime to 21896721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1896721 × 10^7
Engineering notation 2.1896721 × 10^6

Prime Factorization of 21896721

Prime Factorization 9 × 11 × 7 × 19 × 1663

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21896721
Product of the distinct prime numbers

The prime factorization of 21896721 is 9 × 11 × 7 × 19 × 1663. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 5, 17, 95, 847, 864, 4753, 9255, 10965, 36187, 441393, 800725, 4039810, 7733842, 61786221, 61418530, 453557435, 226085072, 2700654002, 2240471887

Basic calculations (n = 21896721)

Multiplication

n×y
n×2 43793442
n×3 65690163
n×4 87586884
n×5 109483605

Division

n÷y
n÷2 10948360.5
n÷3 7298907
n÷3 5474180.25
n÷5 4379344.2

Exponentiation

ny
n2 479466390551841
n3 1.0498741782791E+22
n4 2.2988801966881E+29
n5 5.0337938279305E+36

Nth Root

y√n
2√n 4679.3932298964
3√n 279.76477267953
4√n 68.406090590651
5√n 29.381625369008

Divisors of 21896721

1, 7, 9, 11, 19, 63, 77, 99, 133, 171, 209, 693, 1197, 1463, 1663, 1881, 11641, 13167, 14967, 18293, 31597, 104769, 128051, 164637, 221179, 284373, 347567, 1152459, 1990611, 2432969, 3128103, 21896721

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21896720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21896721 can be divided by 32 positive divisors. The sum of these divisors (counting 21896721) is 1, the average is 0.03125.

Base conversion 21896721

Base System Value
2 Binary 1010011100001111000010001
3 Ternary 1112012110122200
4 Quaternary 1103201320101
5 Quinary 21101143341
6 Senary 2101153413
8 Octal 123417021
10 Decimal 21896721
12 Duodecimal 73bb869
16 Hexadecimal 14e1e11
20 Vigesimal 6gh1g1
36 Base36 d1bm9

Cryptographic Hash Functions

md5 e128b562c9be51264989d9e553b2dc39
sha1 b66e40da8eff247d3c320485a3b81930ada95b53
sha256 44bf8247b4675df0e1a5a41e7892023f5b397d0bfe19857b1d2245f90c290c3b
sha512 17679c4e01fdbc4cf9cc92a0b653c995254c8bbb50ebe9d86a8f28b2a3c832dbe984b93c3b78619b81dc6a4d42b579b021cb80615a3778ed290eeab8658bb60e
ripemd-160 9992a8dd99719184a7452c73ce5b6a4a44e6e52c

21896721 as geometric shapes

Circle

Radius = n
Diameter 43793442
Circumference 137581155.66261
Area 1.5062880902009E+15

Sphere

Radius = n
Volume 4.3977026742335E+22
Surface area 6.0251523608035E+15
Circumference 137581155.66261

Square

Length = n
Perimeter 87586884
Area 479466390551841
Diagonal 30966639.8097

Cube

Length = n
Surface area 2876798343311046
Volume 1.0498741782791E+22
Space diagonal 37926233.29116

Equilateral Triangle

Length = n
Perimeter 65690163
Area 2.0761503723936E+14
Altitude 18963116.64558

Triangular Pyramid

Length = n
Surface area 2.0761503723936E+14
Volume 1.2372885847563E+21
Height 10322213.2699