81136427 is an odd 8-digits composite number following 81136426
and preceding 81136428 . In scientific notation, it is written as 8.1136427 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 76363680 positive integers (up to 81136427) that are relatively prime to 81136427.
81136427 has 4 divisors, whose sum is 85909176
The reverse of 81136427 is 72463118
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million one hundred thirty-six thousand four hundred twenty-seven
Scientific notation
8.1136427 × 10^7
Engineering notation
8.1136427 × 10^6
Prime Factorization
17 × 4772731
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81136427
Product of the distinct prime numbers
The prime factorization of 81136427 is 17 × 4772731.
Since it has a total of 2 prime factors.
8 , 3 , 57 , 27 , 185 , 859 , 8698 , 1574 , 21354 , 5096 , 287423 , 149580 , 9018842 , 4107817 , 20486682 , 20901376 , 515633063 , 441789405 , 9401546865 , 6840258651
n×2
162272854
n×3
243409281
n×4
324545708
n×5
405682135
n÷2
40568213.5
n÷3
27045475.666667
n÷3
20284106.75
n÷5
16227285.4
n2
6583119786326329
n3
5.3413081797552E+23
n4
4.3337466121121E+31
n5
3.5162471563013E+39
2 √n
9007.5760890486
3 √n
432.91765062038
4 √n
94.908250900797
5 √n
38.180637521857
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
-81136426
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 81136427 can be divided by 4 positive divisors.
The sum of these divisors (counting 81136427) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101100000101100101011
3
Ternary
12122200011020212
4
Quaternary
10311200230223
5
Quinary
131232331202
6
Senary
12015011335
8
Octal
465405453
10
Decimal
81136427
12
Duodecimal
23209b4b
16
Hexadecimal
4d60b2b
20
Vigesimal
1572117
36
Base36
1cb19n
md5
5a9d63a40046047d0cebcdbe7ff128d1
sha1
f04ada5cee9c568acc31e1b61d6d56b320fa05b9
sha256
167c9f7e91347f330d39d917a4cd22b8f93c6da705b2ec39c7d78cb5df47dd4b
sha512
cfd38a77e21a81e94a0e11c6a188f5aed89f272711fb6708a63372d6c2b430efcc3653413636c58f6fedd124d680488b19b472a11803085e00d3878585b4d7bb
ripemd-160
49590f77faeb6c96fc53fe7b36fa22da0db73701
Diameter
162272854
Circumference
509795206.00345
Area
2.0681480758424E+16
Volume
2.2373619384104E+24
Surface area
8.2725923033698E+16
Circumference
509795206.00345
Perimeter
324545708
Area
6583119786326329
Diagonal
114744235.46589
Surface area
39498718717957974
Volume
5.3413081797552E+23
Space diagonal
140532413.9086
Perimeter
243409281
Area
2.8505744855573E+15
Altitude
70266206.954302
Surface area
2.8505744855573E+15
Volume
6.2947920571868E+22
Height
38248078.488632