21397929 (number)

21397929 is an odd 8-digits composite number following 21397928 and preceding 21397930. In scientific notation, it is written as 2.1397929 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 12227376 positive integers (up to 21397929) that are relatively prime to 21397929.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1397929 × 10^7
Engineering notation 2.1397929 × 10^6

Prime Factorization of 21397929

Prime Factorization 3 × 7 × 1018949

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21397929
Product of the distinct prime numbers

The prime factorization of 21397929 is 3 × 7 × 1018949. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21397929)

Multiplication

n×y
n×2 42795858
n×3 64193787
n×4 85591716
n×5 106989645

Division

n÷y
n÷2 10698964.5
n÷3 7132643
n÷3 5349482.25
n÷5 4279585.8

Exponentiation

ny
n2 457871365489041
n3 9.7974989698675E+21
n4 2.096461873348E+29
n5 4.4859942317107E+36

Nth Root

y√n
2√n 4625.7895542275
3√n 277.62415351936
4√n 68.013157214082
5√n 29.246530168453

Divisors of 21397929

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 -21397928
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 21397929 can be divided by 8 positive divisors. The sum of these divisors (counting 21397929) is 1, the average is 0.125.

Base conversion 21397929

Base System Value
2 Binary 1010001101000000110101001
3 Ternary 1111021010102220
4 Quaternary 1101220012221
5 Quinary 20434213204
6 Senary 2042344253
8 Octal 121500651
10 Decimal 21397929
12 Duodecimal 71bb089
16 Hexadecimal 14681a9
20 Vigesimal 6deeg9
36 Base36 cqmqx

Cryptographic Hash Functions

md5 63b01a50b15c0e5bb1b813ba2dc753c8
sha1 8cd357a1f229bb792b5b670ce31929e26e52b433
sha256 5ddc69f4f7e01e47d3220aa88ec2873a85d7cdda0ab41183d44a37e68c1be2ba
sha512 6e7dfb30ad203a737c3d1b7637cc792e3372e0646d39dd27443f568ddce982b58b33bd35b0bed717caf6ea9806bd914b2bbb31fba728f2535beb41cb66c1ae5e
ripemd-160 0c38b2c307c5c608413e3f5a2d1104e7446b4b7f

21397929 as geometric shapes

Circle

Radius = n
Diameter 42795858
Circumference 134447153.09687
Area 1.4384453181095E+15

Sphere

Radius = n
Volume 4.1039667716386E+22
Surface area 5.753781272438E+15
Circumference 134447153.09687

Square

Length = n
Perimeter 85591716
Area 457871365489041
Diagonal 30261241.398497

Cube

Length = n
Surface area 2747228192934246
Volume 9.7974989698675E+21
Space diagonal 37062300.204751

Equilateral Triangle

Length = n
Perimeter 64193787
Area 1.9826411708949E+14
Altitude 18531150.102376

Triangular Pyramid

Length = n
Surface area 1.9826411708949E+14
Volume 1.1546463267103E+21
Height 10087080.466166