21539907 (number)

21539907 is an odd 8-digits composite number following 21539906 and preceding 21539908. In scientific notation, it is written as 2.1539907 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 14337648 positive integers (up to 21539907) that are relatively prime to 21539907.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-nine thousand nine hundred seven

Notation

Scientific notation 2.1539907 × 10^7
Engineering notation 2.1539907 × 10^6

Prime Factorization of 21539907

Prime Factorization 9 × 2887 × 829

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21539907
Product of the distinct prime numbers

The prime factorization of 21539907 is 9 × 2887 × 829. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 10, 24, 84, 905, 815, 3612, 4554, 52135, 39735, 778509, 568642, 2840946, 3633671, 51932001, 22954392, 729171153, 858232723, 4304397187, 1270410626

Basic calculations (n = 21539907)

Multiplication

n×y
n×2 43079814
n×3 64619721
n×4 86159628
n×5 107699535

Division

n÷y
n÷2 10769953.5
n÷3 7179969
n÷3 5384976.75
n÷5 4307981.4

Exponentiation

ny
n2 463967593568649
n3 9.9938188164825E+21
n4 2.1526592788188E+29
n5 4.6368080668445E+36

Nth Root

y√n
2√n 4641.110535206
3√n 278.23682440161
4√n 68.125696585106
5√n 29.285238465362

Divisors of 21539907

1, 9, 829, 2887, 7461, 25983, 2393323, 21539907

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21539906
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21539907 can be divided by 8 positive divisors. The sum of these divisors (counting 21539907) is 1, the average is 0.125.

Base conversion 21539907

Base System Value
2 Binary 1010010001010110001000011
3 Ternary 1111112100012100
4 Quaternary 1102022301003
5 Quinary 21003234112
6 Senary 2045401443
8 Octal 122126103
10 Decimal 21539907
12 Duodecimal 7269283
16 Hexadecimal 148ac43
20 Vigesimal 6ec9f7
36 Base36 ctoar

Cryptographic Hash Functions

md5 189861ea67f2bdc7846b5e442c2b3372
sha1 a368c64c846459512ab6b4777bf31a2383a16669
sha256 9d02e84843dcbbbc35e0bd0f79c6bcca2e609e43a71ba810f36436d003deca5f
sha512 7653efa5a1c51da3cde1f4fe419b9f169f794ee34f5177d87ad263f89ffa707f85743c06f5f0df44a3e3fe22a3535ca04844fe3de40caba4dada42814f0def89
ripemd-160 93e3516d2af56d4c636b98829e6483994946c5b3

21539907 as geometric shapes

Circle

Radius = n
Diameter 43079814
Circumference 135339227.18041
Area 1.457597183459E+15

Sphere

Radius = n
Volume 4.1862010366892E+22
Surface area 5.830388733836E+15
Circumference 135339227.18041

Square

Length = n
Perimeter 86159628
Area 463967593568649
Diagonal 30462028.611655

Cube

Length = n
Surface area 2783805561411894
Volume 9.9938188164825E+21
Space diagonal 37308213.314309

Equilateral Triangle

Length = n
Perimeter 64619721
Area 2.0090386128159E+14
Altitude 18654106.657154

Triangular Pyramid

Length = n
Surface area 2.0090386128159E+14
Volume 1.1777828425141E+21
Height 10154009.537218