81129627 is an odd 8-digits composite number following 81129626
and preceding 81129628 . In scientific notation, it is written as 8.1129627 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 50904576 positive integers (up to 81129627) that are relatively prime to 81129627.
81129627 has 8 divisors, whose sum is 108880464
The reverse of 81129627 is 72692118
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million one hundred twenty-nine thousand six hundred twenty-seven
Scientific notation
8.1129627 × 10^7
Engineering notation
8.1129627 × 10^6
Prime Factorization
153 × 3 × 176753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81129627
Product of the distinct prime numbers
The prime factorization of 81129627 is 153 × 3 × 176753.
Since it has a total of 3 prime factors.
4 , 6 , 20 , 32 , 916 , 73 , 664 , 8790 , 78996 , 64842 , 48207 , 520190 , 2167300 , 6446732 , 49384539 , 40526447 , 554357958 , 700456385 , 8876736619 , 9843935338
n×2
162259254
n×3
243388881
n×4
324518508
n×5
405648135
n÷2
40564813.5
n÷3
27043209
n÷3
20282406.75
n÷5
16225925.4
n2
6582016377159129
n3
5.3399653358681E+23
n4
4.3322939589191E+31
n5
3.5147739294146E+39
2 √n
9007.198621103
3 √n
432.90555608456
4 √n
94.906262286021
5 √n
38.179997520692
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81129626
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81129627 can be divided by 8 positive divisors.
The sum of these divisors (counting 81129627) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011111000010011011
3
Ternary
12122122210221000
4
Quaternary
10311133002123
5
Quinary
131232122002
6
Senary
12014520043
8
Octal
465370233
10
Decimal
81129627
12
Duodecimal
23206023
16
Hexadecimal
4d5f09b
20
Vigesimal
1571417
36
Base36
1caw0r
md5
da7ff0bf407bbb9767a76f782b6087f3
sha1
98a736e30c15023c343d1202165ef7ea1a46144d
sha256
2a6746e6566e5d590e6b08203690381c72ef0334bcbca3bc1521fa752f852c5f
sha512
59e63de9f8b6b0ae234625bd698a1425b961d1d40905d9e87db6915ebfb11c1828a6313a17f9df08e046cc23ebc8c564450d81d09df0f7fd297c73c4f6e6cfef
ripemd-160
6f4f2969b4b38434443791546bd950a359814cbf
Diameter
162259254
Circumference
509752480.34336
Area
2.0678014296291E+16
Volume
2.2367994492783E+24
Surface area
8.2712057185163E+16
Circumference
509752480.34336
Perimeter
324518508
Area
6582016377159129
Diagonal
114734618.81367
Surface area
39492098262954774
Volume
5.3399653358681E+23
Space diagonal
140520635.96311
Perimeter
243388881
Area
2.8500966953725E+15
Altitude
70260317.981556
Surface area
2.8500966953725E+15
Volume
6.2932095004891E+22
Height
38244872.93789