21388345 (number)

21388345 is an odd 8-digits composite number following 21388344 and preceding 21388346. In scientific notation, it is written as 2.1388345 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 15555120 positive integers (up to 21388345) that are relatively prime to 21388345.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-eight thousand three hundred forty-five

Notation

Scientific notation 2.1388345 × 10^7
Engineering notation 2.1388345 × 10^6

Prime Factorization of 21388345

Prime Factorization 11 × 5 × 388879

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21388345
Product of the distinct prime numbers

The prime factorization of 21388345 is 11 × 5 × 388879. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21388345)

Multiplication

n×y
n×2 42776690
n×3 64165035
n×4 85553380
n×5 106941725

Division

n÷y
n÷2 10694172.5
n÷3 7129448.3333333
n÷3 5347086.25
n÷5 4277669

Exponentiation

ny
n2 457461301839025
n3 9.7843401478822E+21
n4 2.0927084268026E+29
n5 4.475956981686E+36

Nth Root

y√n
2√n 4624.753506945
3√n 277.58269861609
4√n 68.005540266547
5√n 29.243909830978

Divisors of 21388345

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 -21388344
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 21388345 can be divided by 8 positive divisors. The sum of these divisors (counting 21388345) is 1, the average is 0.125.

Base conversion 21388345

Base System Value
2 Binary 1010001100101110000111001
3 Ternary 1111020122021221
4 Quaternary 1101211300321
5 Quinary 20433411340
6 Senary 2042232041
8 Octal 121456071
10 Decimal 21388345
12 Duodecimal 71b5621
16 Hexadecimal 1465c39
20 Vigesimal 6ddah5
36 Base36 cqfcp

Cryptographic Hash Functions

md5 3728af7592fc433d237d4101e606f150
sha1 e7e721b3203c4f41a90b65cb4578db2f8ca4d516
sha256 3769c9ba9a178c5fe4891d089f42f6e638d5c7901e708794d4fae65cc0fa8ce5
sha512 92f229cf8644d03b9bb95c6a0297e8a2442e7a2c6b0fcfadac8e32058ae0d45f2708007ead22600a9a16bbc0c7af3aa967b993367699d856ed36e680d194a7ff
ripemd-160 9136afd284f22be72c869d602d8b3be19458a37b

21388345 as geometric shapes

Circle

Radius = n
Diameter 42776690
Circumference 134386935.04889
Area 1.4371570651591E+15

Sphere

Radius = n
Volume 4.0984548171747E+22
Surface area 5.7486282606364E+15
Circumference 134386935.04889

Square

Length = n
Perimeter 85553380
Area 457461301839025
Diagonal 30247687.575715

Cube

Length = n
Surface area 2744767811034150
Volume 9.7843401478822E+21
Space diagonal 37045700.229812

Equilateral Triangle

Length = n
Perimeter 64165035
Area 1.9808655432045E+14
Altitude 18522850.114906

Triangular Pyramid

Length = n
Surface area 1.9808655432045E+14
Volume 1.1530955446672E+21
Height 10082562.525238