81102015 is an odd 8-digits composite number following 81102014
and preceding 81102016 . In scientific notation, it is written as 8.1102015 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 43254384 positive integers (up to 81102015) that are relatively prime to 81102015.
81102015 has 12 divisors, whose sum is 140576904
The reverse of 81102015 is 51020118
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
eighty-one million one hundred two thousand fifteen
Scientific notation
8.1102015 × 10^7
Engineering notation
8.1102015 × 10^6
Prime Factorization
3 × 3 × 5 × 1802267
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
27034005
Product of the distinct prime numbers
The prime factorization of 81102015 is 3 × 3 × 5 × 1802267.
Since it has a total of 4 prime factors.
3 , 10 , 95 , 20 , 883 , 220 , 6541 , 5684 , 83480 , 89793 , 323805 , 756754 , 6102934 , 2231683 , 3949734 , 87569880 , 376085702 , 197714164 , 4642308766 , 8362671799
n×2
162204030
n×3
243306045
n×4
324408060
n×5
405510075
n÷2
40551007.5
n÷3
27034005
n÷3
20275503.75
n÷5
16220403
n2
6577536837060225
n3
5.3345149122231E+23
n4
4.3263990842884E+31
n5
3.5087968342995E+39
2 √n
9005.6657166475
3 √n
432.85643820986
4 √n
94.898186055622
5 √n
38.177398298485
1 , 3 , 5 , 9 , 15 , 45 , 1802267 , 5406801 , 9011335 , 16220403 , 27034005 , 81102015
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81102014
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81102015 can be divided by 12 positive divisors.
The sum of these divisors (counting 81102015) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101011000010010111111
3
Ternary
12122121102001100
4
Quaternary
10311120102333
5
Quinary
131230231030
6
Senary
12014144143
8
Octal
465302277
10
Decimal
81102015
12
Duodecimal
231b2053
16
Hexadecimal
4d584bf
20
Vigesimal
156hf0f
36
Base36
1caapr
md5
79168e24d494cf77700bbb690ea7f54f
sha1
b16b170f24a31fe45dbdf85d7813ecfcf10c95ef
sha256
1fd5b2228a7c17fee34fd738c714d07fd7f78b658c2cb3598dc290a6ea5f63c9
sha512
65f7680d4b83baba192d87735fc994c733b6ca8142958ef15dc360795f02c409392e79f97fe2771536921eca25ab02d751a1a5bdc0244dc59aa11a87c77c54db
ripemd-160
17d85589988b718fad87db8ba8835ad3e42afe0b
Diameter
162204030
Circumference
509578989.03066
Area
2.0663941406025E+16
Volume
2.2345163811607E+24
Surface area
8.2655765624099E+16
Circumference
509578989.03066
Perimeter
324408060
Area
6577536837060225
Diagonal
114695569.54879
Surface area
39465221022361350
Volume
5.3345149122231E+23
Space diagonal
140472810.57621
Perimeter
243306045
Area
2.848156997611E+15
Altitude
70236405.288107
Surface area
2.848156997611E+15
Volume
6.2867861146229E+22
Height
38231856.516262