81025535 is an odd 8-digits composite number following 81025534
and preceding 81025536 . In scientific notation, it is written as 8.1025535 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 64820424 positive integers (up to 81025535) that are relatively prime to 81025535.
81025535 has 4 divisors, whose sum is 97230648
The reverse of 81025535 is 53552018
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million twenty-five thousand five hundred thirty-five
Scientific notation
8.1025535 × 10^7
Engineering notation
8.1025535 × 10^6
Prime Factorization
5 × 16205107
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81025535
Product of the distinct prime numbers
The prime factorization of 81025535 is 5 × 16205107.
Since it has a total of 2 prime factors.
5 , 10 , 39 , 8 , 921 , 220 , 3327 , 30 , 48313 , 25286 , 256864 , 630638 , 7221347 , 2221802 , 51741158 , 68168600 , 931119771 , 298060702 , 6579526075 , 1975148120
n×2
162051070
n×3
243076605
n×4
324102140
n×5
405127675
n÷2
40512767.5
n÷3
27008511.666667
n÷3
20256383.75
n÷5
16205107
n2
6565137322036225
n3
5.3194376386645E+23
n4
4.3101028057193E+31
n5
3.4922838573841E+39
2 √n
9001.4184993255
3 √n
432.7203327879
4 √n
94.875805658374
5 √n
38.17019524833
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
-81025534
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 81025535 can be divided by 4 positive divisors.
The sum of these divisors (counting 81025535) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000101100111111111
3
Ternary
12122110112010202
4
Quaternary
10311011213333
5
Quinary
131220304120
6
Senary
12012354115
8
Octal
465054777
10
Decimal
81025535
12
Duodecimal
2317593b
16
Hexadecimal
4d459ff
20
Vigesimal
15683gf
36
Base36
1c8npb
md5
e4b15a67b78d2893244a2ec5fb2cd64a
sha1
8b294b2c800a94f244fb990087db37d99f9c869b
sha256
32e34ad17d53ecdf711f6fa2cddcaba248ef1355468edbdc4513fb5d9651b14b
sha512
9daf0b52850d89295b1674d5b896701671ab6fd29a01e8e850c4db1a47b575247454362a206fb32f6b8d89f515d2d2431c8e7c48603b625d5a712dca92e8a9dd
ripemd-160
a15f3981c658fe0e0325c0e020c99858650b21d7
Diameter
162051070
Circumference
509098451.01837
Area
2.0624987180717E+16
Volume
2.228200827581E+24
Surface area
8.2499948722869E+16
Circumference
509098451.01837
Perimeter
324102140
Area
6565137322036225
Diagonal
114587410.49554
Surface area
39390823932217350
Volume
5.3194376386645E+23
Space diagonal
140340343.33045
Perimeter
243076605
Area
2.8427878501084E+15
Altitude
70170171.665225
Surface area
2.8427878501084E+15
Volume
6.2690173773311E+22
Height
38195803.498512