81250135 is an odd 8-digits composite number following 81250134
and preceding 81250136 . In scientific notation, it is written as 8.1250135 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 65000104 positive integers (up to 81250135) that are relatively prime to 81250135.
81250135 has 4 divisors, whose sum is 97500168
The reverse of 81250135 is 53105218
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million two hundred fifty thousand one hundred thirty-five
Scientific notation
8.1250135 × 10^7
Engineering notation
8.1250135 × 10^6
Prime Factorization
5 × 16250027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81250135
Product of the distinct prime numbers
The prime factorization of 81250135 is 5 × 16250027.
Since it has a total of 2 prime factors.
6 , 6 , 70 , 42 , 716 , 102 , 1930 , 4495 , 75388 , 34051 , 659038 , 618301 , 1309975 , 6257040 , 19259782 , 35082444 , 434591186 , 132234833 , 1577930052 , 4641653136
n×2
162500270
n×3
243750405
n×4
325000540
n×5
406250675
n÷2
40625067.5
n÷3
27083378.333333
n÷3
20312533.75
n÷5
16250027
n2
6601584437518225
n3
5.3637962676225E+23
n4
4.3580917085683E+31
n5
3.5409553966355E+39
2 √n
9013.8856771095
3 √n
433.11979255192
4 √n
94.941485542989
5 √n
38.191333117962
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
-81250134
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 81250135 can be divided by 4 positive divisors.
The sum of these divisors (counting 81250135) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101111100011101010111
3
Ternary
12122212221020021
4
Quaternary
10311330131113
5
Quinary
131300001020
6
Senary
12021250011
8
Octal
465743527
10
Decimal
81250135
12
Duodecimal
23263907
16
Hexadecimal
4d7c757
20
Vigesimal
157g56f
36
Base36
1cdh07
md5
b1a4a0ad33302621bdab505babcddf6d
sha1
a3e9e1800b5befeb62eb24f6b046f1609d221edb
sha256
d25e4b2111cceb5399336d9c4ac7047489fa006da4ab2f4960f8eab008478a40
sha512
ff5a33c0e551bf825113be3000a53795096f9566feb9a0f95a5a64912799943fbc9d6fc2989a2767e6f00d8c57dee9dae0fb079216483f2c5f8602e5e41422b6
ripemd-160
a1e7dc0383b39be11f6ce90abc87314eacff32cc
Diameter
162500270
Circumference
510509654.43836
Area
2.073948917096E+16
Volume
2.2467817266287E+24
Surface area
8.295795668384E+16
Circumference
510509654.43836
Perimeter
325000540
Area
6601584437518225
Diagonal
114905042.86164
Surface area
39609506625109350
Volume
5.3637962676225E+23
Space diagonal
140729361.94183
Perimeter
243750405
Area
2.8585699140594E+15
Altitude
70364680.970915
Surface area
2.8585699140594E+15
Volume
6.3212945228983E+22
Height
38301680.953882