81580135 is an odd 8-digits composite number following 81580134
and preceding 81580136 . In scientific notation, it is written as 8.1580135 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 51314688 positive integers (up to 81580135) that are relatively prime to 81580135.
81580135 has 16 divisors, whose sum is 95261760
The reverse of 81580135 is 53108518
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million five hundred eighty thousand one hundred thirty-five
Scientific notation
8.1580135 × 10^7
Engineering notation
8.1580135 × 10^6
Prime Factorization
7 × 65 × 193 × 929
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81580135
Product of the distinct prime numbers
The prime factorization of 81580135 is 7 × 65 × 193 × 929.
Since it has a total of 4 prime factors.
1 , 7 , 44 , 34 , 517 , 774 , 8076 , 9091 , 14649 , 84759 , 169006 , 337190 , 1098222 , 5549864 , 77256041 , 40643905 , 687791616 , 979577811 , 2570568374 , 6767686946
n×2
163160270
n×3
244740405
n×4
326320540
n×5
407900675
n÷2
40790067.5
n÷3
27193378.333333
n÷3
20395033.75
n÷5
16316027
n2
6655318426618225
n3
5.429417757115E+23
n4
4.4293263359684E+31
n5
3.6134504044736E+39
2 √n
9032.1722193501
3 √n
433.705377067
4 √n
95.037741026132
5 √n
38.222305902101
1 , 7 , 65 , 193 , 455 , 929 , 1351 , 6503 , 12545 , 60385 , 87815 , 179297 , 422695 , 1255079 , 11654305 , 81580135
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
-81580134
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 81580135 can be divided by 16 positive divisors.
The sum of these divisors (counting 81580135) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111001101000001100111
3
Ternary
12200111200220111
4
Quaternary
10313031001213
5
Quinary
131341031020
6
Senary
12032313451
8
Octal
467150147
10
Decimal
81580135
12
Duodecimal
233a2887
16
Hexadecimal
4dcd067
20
Vigesimal
159ha6f
36
Base36
1ckjmv
md5
282c63a269de2c7b750e4e5b5323a436
sha1
bbeaf2050168b8ea1e05ee71a854fb6057ead44b
sha256
6bbf879992164ad47ce532b6e61ebe6ec2181dc5f6182e6fb6b3558581dd73b2
sha512
c8d9aae5b20e28392df084982a299d1ba9b2fe268b02ee3b5aa2306822890a7cef55172f1f2afaaec879b2f1b2a99aa6a38b2fb03ad372a9665f7ef8bb50c621
ripemd-160
73599ff7de7ce918f112375d16418909aa69b626
Diameter
163160270
Circumference
512583105.58973
Area
2.0908299476365E+16
Volume
2.2742691918697E+24
Surface area
8.3633197905458E+16
Circumference
512583105.58973
Perimeter
326320540
Area
6655318426618225
Diagonal
115371733.33723
Surface area
39931910559709350
Volume
5.429417757115E+23
Space diagonal
141300938.70833
Perimeter
244740405
Area
2.881837413863E+15
Altitude
70650469.354164
Surface area
2.881837413863E+15
Volume
6.3986301899178E+22
Height
38457244.445743