28931655 (number)

28931655 is an odd 8-digits composite number following 28931654 and preceding 28931656. In scientific notation, it is written as 2.8931655 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 15339648 positive integers (up to 28931655) that are relatively prime to 28931655.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand six hundred fifty-five

Notation

Scientific notation 2.8931655 × 10^7
Engineering notation 2.8931655 × 10^6

Prime Factorization of 28931655

Prime Factorization 5 × 3 × 173 × 11149

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931655
Product of the distinct prime numbers

The prime factorization of 28931655 is 5 × 3 × 173 × 11149. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 45, 33, 9, 789, 171, 6316, 60378, 23610, 784946, 180591, 1595784, 243021, 68297677, 35922917, 151694172, 273947132, 63850484, 3609261292

Basic calculations (n = 28931655)

Multiplication

n×y
n×2 57863310
n×3 86794965
n×4 115726620
n×5 144658275

Division

n÷y
n÷2 14465827.5
n÷3 9643885
n÷3 7232913.75
n÷5 5786331

Exponentiation

ny
n2 837040661039025
n3 2.4216971626153E+22
n4 7.0063706823265E+29
n5 2.0270589938318E+37

Nth Root

y√n
2√n 5378.8153900278
3√n 306.99013927804
4√n 73.340407621091
5√n 31.065235876131

Divisors of 28931655

1, 3, 5, 15, 173, 519, 865, 2595, 11149, 33447, 55745, 167235, 1928777, 5786331, 9643885, 28931655

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 -28931654
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 28931655 can be divided by 16 positive divisors. The sum of these divisors (counting 28931655) is 1, the average is 0.0625.

Base conversion 28931655

Base System Value
2 Binary 1101110010111011001000111
3 Ternary 2000102212202210
4 Quaternary 1232113121013
5 Quinary 24401303110
6 Senary 2512034503
8 Octal 156273107
10 Decimal 28931655
12 Duodecimal 9832a33
16 Hexadecimal 1b97647
20 Vigesimal 90g92f
36 Base36 h83t3

Cryptographic Hash Functions

md5 c1c05c03ff6a8159be5cba90353b5f8a
sha1 f8785c455d361f50c9809d25daa3d7721bbe0faa
sha256 35ccf145996500e0b9df5359bf6460456b5e439473d85c30d3cfb7d552cd5b1d
sha512 0d5efbcc11b0755731cf75cf5fe1b03225b9f559b2f87256845f2e4187ca2aa19d91631968217ea58cfe47925268169cc3eb2f16051caa0f6ad0aeceef224d7b
ripemd-160 39357f5bebf06e8fb7ceaf5c84ca7193fabf3773

28931655 as geometric shapes

Circle

Radius = n
Diameter 57863310
Circumference 181782949.60839
Area 2.6296407914761E+15

Sphere

Radius = n
Volume 1.0143981353722E+23
Surface area 1.0518563165905E+16
Circumference 181782949.60839

Square

Length = n
Perimeter 115726620
Area 837040661039025
Diagonal 40915538.882899

Cube

Length = n
Surface area 5022243966234150
Volume 2.4216971626153E+22
Space diagonal 50111096.407054

Equilateral Triangle

Length = n
Perimeter 86794965
Area 3.6244923823016E+14
Altitude 25055548.203527

Triangular Pyramid

Length = n
Surface area 3.6244923823016E+14
Volume 2.8539974761092E+21
Height 13638512.960966