28131755 is an odd 8-digits composite number following 28131754
and preceding 28131756 . In scientific notation, it is written as 2.8131755 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 22505400 positive integers (up to 28131755) that are relatively prime to 28131755.
28131755 has 4 divisors, whose sum is 33758112
The reverse of 28131755 is 55713182
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million one hundred thirty-one thousand seven hundred fifty-five
Scientific notation
2.8131755 × 10^7
Engineering notation
2.8131755 × 10^6
Prime Factorization
5 × 5626351
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28131755
Product of the distinct prime numbers
The prime factorization of 28131755 is 5 × 5626351.
Since it has a total of 2 prime factors.
8 , 10 , 24 , 8 , 988 , 565 , 1438 , 2573 , 90077 , 57033 , 201269 , 676064 , 3822038 , 2900392 , 71124536 , 6506533 , 810991104 , 335774584 , 2706250953 , 1065768583
n×2
56263510
n×3
84395265
n×4
112527020
n×5
140658775
n÷2
14065877.5
n÷3
9377251.6666667
n÷3
7032938.75
n÷5
5626351
n2
791395639380025
n3
2.2263348235107E+22
n4
6.2630705802972E+29
n5
1.7619116711263E+37
2 √n
5303.9376881709
3 √n
304.13444465906
4 √n
72.82813802488
5 √n
30.891526206193
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
-28131754
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 28131755 can be divided by 4 positive divisors.
The sum of these divisors (counting 28131755) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011010100000110101011
3
Ternary
1221221020111212
4
Quaternary
1223110012223
5
Quinary
24200204010
6
Senary
2442543335
8
Octal
153240653
10
Decimal
28131755
12
Duodecimal
9507b4b
16
Hexadecimal
1ad41ab
20
Vigesimal
8fg97f
36
Base36
gqyln
md5
1db7c1cc8389937146f227ee9c05283f
sha1
5f9aa6bb74521f7f8e68cce633b89bf715f1eea3
sha256
2ee30a04e2f9b117e4b230703f1ec1d34ccb6ad6f851ff1b0d3fb4bbc3ff43e4
sha512
93d37213b6de9fcc658099e61c4b642e2322f2d725c6737c5e161663d7cbdc038c5de3ac937adb194325abdf29eb9881e552b164006009844c9cfdfb50c08eaf
ripemd-160
6e433d858791341a56083dbdfed45b2b9f4c0e09
Diameter
56263510
Circumference
176757029.68118
Area
2.4862427267593E+15
Volume
9.3256495012965E+22
Surface area
9.9449709070371E+15
Circumference
176757029.68118
Perimeter
112527020
Area
791395639380025
Diagonal
39784309.454357
Surface area
4748373836280150
Volume
2.2263348235107E+22
Space diagonal
48725628.96608
Perimeter
84395265
Area
3.4268436407367E+14
Altitude
24362814.48304
Surface area
3.4268436407367E+14
Volume
2.6237607514936E+21
Height
13261436.484786