28508729 (number)

28508729 is an odd 8-digits composite number following 28508728 and preceding 28508730. In scientific notation, it is written as 2.8508729 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 28484340 positive integers (up to 28508729) that are relatively prime to 28508729.

Interesting facts

Basic properties

Name

Name twenty-eight million five hundred eight thousand seven hundred twenty-nine

Notation

Scientific notation 2.8508729 × 10^7
Engineering notation 2.8508729 × 10^6

Prime Factorization of 28508729

Prime Factorization 1231 × 23159

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28508729
Product of the distinct prime numbers

The prime factorization of 28508729 is 1231 × 23159. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28508729)

Multiplication

n×y
n×2 57017458
n×3 85526187
n×4 114034916
n×5 142543645

Division

n÷y
n÷2 14254364.5
n÷3 9502909.6666667
n÷3 7127182.25
n÷5 5701745.8

Exponentiation

ny
n2 812747629195441
n3 2.3170401906125E+22
n4 6.6055870876281E+29
n5 1.8831689216709E+37

Nth Root

y√n
2√n 5339.3566091805
3√n 305.48691909708
4√n 73.070901247901
5√n 30.973877123761

Divisors of 28508729

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28508728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28508729 can be divided by 4 positive divisors. The sum of these divisors (counting 28508729) is 1, the average is 0.25.

Base conversion 28508729

Base System Value
2 Binary 1101100110000001000111001
3 Ternary 1222122101121212
4 Quaternary 1230300020321
5 Quinary 24244234404
6 Senary 2455012505
8 Octal 154601071
10 Decimal 28508729
12 Duodecimal 966a135
16 Hexadecimal 1b30239
20 Vigesimal 8i3bg9
36 Base36 gz1h5

Cryptographic Hash Functions

md5 574ce1ebcadeb594e2c0dea711d742f4
sha1 8ff1c75d02e5de8670228d3bfe2defe6f6709bd9
sha256 cd226e482f848082fbc4fbc132f2bb4e8831d6f215f6e0c21f45c72f253ccebd
sha512 1df52263ca50c9491f3355d538dce678a7c74ee033e3147bdfb9bceaa313510cb62a5525c179e0674e6170977ccb0bd7557dc417726b488c25656bcb9ade7a67
ripemd-160 cf264a40194e656dd68108cc9461ff897107883b

28508729 as geometric shapes

Circle

Radius = n
Diameter 57017458
Circumference 179125627.17916
Area 2.5533219811029E+15

Sphere

Radius = n
Volume 9.7055952545342E+22
Surface area 1.0213287924412E+16
Circumference 179125627.17916

Square

Length = n
Perimeter 114034916
Area 812747629195441
Diagonal 40317431.197819

Cube

Length = n
Surface area 4876485775172646
Volume 2.3170401906125E+22
Space diagonal 49378567.087212

Equilateral Triangle

Length = n
Perimeter 85526187
Area 3.5193004687441E+14
Altitude 24689283.543606

Triangular Pyramid

Length = n
Surface area 3.5193004687441E+14
Volume 2.7306580517732E+21
Height 13439143.732606