81551163 is an odd 8-digits composite number following 81551162
and preceding 81551164 . In scientific notation, it is written as 8.1551163 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 54322688 positive integers (up to 81551163) that are relatively prime to 81551163.
81551163 has 8 divisors, whose sum is 108824400
The reverse of 81551163 is 36115518
Previous prime number is 1289
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million five hundred fifty-one thousand one hundred sixty-three
Scientific notation
8.1551163 × 10^7
Engineering notation
8.1551163 × 10^6
Prime Factorization
3 × 1289 × 21089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81551163
Product of the distinct prime numbers
The prime factorization of 81551163 is 3 × 1289 × 21089.
Since it has a total of 3 prime factors.
9 , 2 , 53 , 59 , 593 , 519 , 8923 , 8415 , 34515 , 58635 , 6018 , 206570 , 7051308 , 7344639 , 65423734 , 74658012 , 201494273 , 834184399 , 1073325812 , 4471761790
n×2
163102326
n×3
244653489
n×4
326204652
n×5
407755815
n÷2
40775581.5
n÷3
27183721
n÷3
20387790.75
n÷5
16310232.6
n2
6650592186652569
n3
5.4236352746023E+23
n4
4.4230376433164E+31
n5
3.6070386380523E+39
2 √n
9030.5682545452
3 √n
433.65402959971
4 √n
95.029302083858
5 √n
38.219590697014
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
-81551162
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 81551163 can be divided by 8 positive divisors.
The sum of these divisors (counting 81551163) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111000101111100111011
3
Ternary
12200110020011110
4
Quaternary
10313011330323
5
Quinary
131334114123
6
Senary
12031531403
8
Octal
467057473
10
Decimal
81551163
12
Duodecimal
23389b63
16
Hexadecimal
4dc5f3b
20
Vigesimal
159dhi3
36
Base36
1cjxa3
md5
dc218847bec17e73e1dbb8b7100f515d
sha1
b35735b1a7898fb93666ecf5cd7958a3c8a77745
sha256
30fd29528142f4f7547fef3dafefc55d1d54eb581cf3eb6f55744188904348b6
sha512
4c021ba3de964231190dd8c035cb2623a9253a4b3515d3ec78d4bf88e36d7c2aeb4acb38054320f419dff284da4ec5a3f8f3aa777e19c4c26d32dce29cb6ee43
ripemd-160
43d2713758ab7e78c968da90455a521093194c67
Diameter
163102326
Circumference
512401069.14501
Area
2.0893451555609E+16
Volume
2.2718470312588E+24
Surface area
8.3573806222438E+16
Circumference
512401069.14501
Perimeter
326204652
Area
6650592186652569
Diagonal
115330760.7419
Surface area
39903553119915414
Volume
5.4236352746023E+23
Space diagonal
141250757.73233
Perimeter
244653489
Area
2.8797908919257E+15
Altitude
70625378.866166
Surface area
2.8797908919257E+15
Volume
6.3918154689231E+22
Height
38443586.913966