28931720 (number)

28931720 is an even 8-digits composite number following 28931719 and preceding 28931721. In scientific notation, it is written as 2.8931720 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 16 positive divisors. There are 11572672 positive integers (up to 28931720) that are relatively prime to 28931720.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931720 × 10^7
Engineering notation 2.8931720 × 10^6

Prime Factorization of 28931720

Prime Factorization 2 × 2 × 2 × 5 × 723293

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7232930
Product of the distinct prime numbers

The prime factorization of 28931720 is 2 × 2 × 2 × 5 × 723293. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 8, 69, 79, 843, 188, 7979, 597, 34227, 12676, 596935, 52950, 5728820, 1831275, 86692585, 70589181, 754138581, 687944015, 6982753478, 4605940493

Basic calculations (n = 28931720)

Multiplication

n×y
n×2 57863440
n×3 86795160
n×4 115726880
n×5 144658600

Division

n÷y
n÷2 14465860
n÷3 9643906.6666667
n÷3 7232930
n÷5 5786344

Exponentiation

ny
n2 837044422158400
n3 2.4217134849449E+22
n4 7.0064336466649E+29
n5 2.0270817646389E+37

Nth Root

y√n
2√n 5378.821432247
3√n 306.99036918014
4√n 73.340448814055
5√n 31.065249834811

Divisors of 28931720

1, 2, 4, 5, 8, 10, 20, 40, 723293, 1446586, 2893172, 3616465, 5786344, 7232930, 14465860, 28931720

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931720 can be divided by 16 positive divisors. The sum of these divisors (counting 28931720) is 1, the average is 0.0625.

Base conversion 28931720

Base System Value
2 Binary 1101110010111011010001000
3 Ternary 2000102212212012
4 Quaternary 1232113122020
5 Quinary 24401303340
6 Senary 2512035052
8 Octal 156273210
10 Decimal 28931720
12 Duodecimal 9832a88
16 Hexadecimal 1b97688
20 Vigesimal 90g960
36 Base36 h83uw

Cryptographic Hash Functions

md5 2c6c25914ab6d921907d3fdbeae74ab8
sha1 6c71f9648b8900370b4a8d29db1f90ceb0e20063
sha256 1c7ff4a45e1652d9d95340e23b132848906c90ebbbef9b23321873502f7fe339
sha512 b366019224a6c0cae81bbcd663fe21503cb4a9ac717d9e54f44e23bf58d4aaf940c5c3188deb5b41e207525386773c9e24d0a0864d400c244006a6386b89374d
ripemd-160 9b93e278f35d9e1f6349ff89823508f4ede38711

28931720 as geometric shapes

Circle

Radius = n
Diameter 57863440
Circumference 181783358.01543
Area 2.6296526073811E+15

Sphere

Radius = n
Volume 1.0144049724536E+23
Surface area 1.0518610429525E+16
Circumference 181783358.01543

Square

Length = n
Perimeter 115726880
Area 837044422158400
Diagonal 40915630.806781

Cube

Length = n
Surface area 5022266532950400
Volume 2.4217134849449E+22
Space diagonal 50111208.990357

Equilateral Triangle

Length = n
Perimeter 86795160
Area 3.6245086684262E+14
Altitude 25055604.495178

Triangular Pyramid

Length = n
Surface area 3.6245086684262E+14
Volume 2.854016712159E+21
Height 13638543.60226