81120135 is an odd 8-digits composite number following 81120134
and preceding 81120136 . In scientific notation, it is written as 8.1120135 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 43216032 positive integers (up to 81120135) that are relatively prime to 81120135.
81120135 has 16 divisors, whose sum is 129936384
The reverse of 81120135 is 53102118
Previous prime number is 1103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million one hundred twenty thousand one hundred thirty-five
Scientific notation
8.1120135 × 10^7
Engineering notation
8.1120135 × 10^6
Prime Factorization
3 × 5 × 1103 × 4903
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81120135
Product of the distinct prime numbers
The prime factorization of 81120135 is 3 × 5 × 1103 × 4903.
Since it has a total of 4 prime factors.
2 , 4 , 33 , 84 , 918 , 6 , 4509 , 5002 , 67389 , 24768 , 166127 , 238049 , 5527734 , 2602488 , 93249128 , 89212248 , 619950993 , 789729060 , 6940590663 , 710227404
n×2
162240270
n×3
243360405
n×4
324480540
n×5
405600675
n÷2
40560067.5
n÷3
27040045
n÷3
20280033.75
n÷5
16224027
n2
6580476302418225
n3
5.3380912601647E+23
n4
4.3302668366688E+31
n5
3.5127183037659E+39
2 √n
9006.6716938057
3 √n
432.8886724053
4 √n
94.9034862047
5 √n
38.179104082594
1 , 3 , 5 , 15 , 1103 , 3309 , 4903 , 5515 , 14709 , 16545 , 24515 , 73545 , 5408009 , 16224027 , 27040045 , 81120135
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
-81120134
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 81120135 can be divided by 16 positive divisors.
The sum of these divisors (counting 81120135) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101011100101110000111
3
Ternary
12122122022220110
4
Quaternary
10311130232013
5
Quinary
131231321020
6
Senary
12014404103
8
Octal
465345607
10
Decimal
81120135
12
Duodecimal
23200633
16
Hexadecimal
4d5cb87
20
Vigesimal
157006f
36
Base36
1caop3
md5
0a3eb9fb5a49fca2206529f92f354ceb
sha1
0fce3bd1add3428a8af4539de7ead2b0b564a48d
sha256
005b0f2bcfd812c1640090829cf6940ef2d132744d473c70693e5e2266ac05a9
sha512
67c840a47cf77aa50ba3ca02dd09efdea98fae8668ee0dc71c1a755beda04810faf30254cd661afedc8573ce19f15379d8c8e36a72dcae8187db7c22ee3c01a1
ripemd-160
c356929166df9b2b902f3996728f97fae703acc6
Diameter
162240270
Circumference
509692840.34842
Area
2.0673176008799E+16
Volume
2.2360144382834E+24
Surface area
8.2692704035195E+16
Circumference
509692840.34842
Perimeter
324480540
Area
6580476302418225
Diagonal
114721195.09854
Surface area
39482857814509350
Volume
5.3380912601647E+23
Space diagonal
140504195.33685
Perimeter
243360405
Area
2.8494298234478E+15
Altitude
70252097.668423
Surface area
2.8494298234478E+15
Volume
6.2910008810918E+22
Height
38240398.366179