81707028 is an even 8-digits composite number following 81707027
and preceding 81707029 . In scientific notation, it is written as 8.1707028 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors.
There are 25140576 positive integers (up to 81707028) that are relatively prime to 81707028.
81707028 has 24 divisors, whose sum is 205315488
The reverse of 81707028 is 82070718
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seven hundred seven thousand twenty-eight
Scientific notation
8.1707028 × 10^7
Engineering notation
8.1707028 × 10^6
Prime Factorization
2 × 2 × 3 × 13 × 523763
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40853514
Product of the distinct prime numbers
The prime factorization of 81707028 is 2 × 2 × 3 × 13 × 523763.
Since it has a total of 5 prime factors.
3 , 8 , 76 , 4 , 683 , 724 , 7404 , 8677 , 79847 , 40485 , 614870 , 236435 , 5522490 , 4745531 , 27262744 , 370762 , 430501879 , 268109545 , 4115654839 , 6976805821
n×2
163414056
n×3
245121084
n×4
326828112
n×5
408535140
n÷2
40853514
n÷3
27235676
n÷3
20426757
n÷5
16341405.6
n2
6676038424592784
n3
5.4547925848728E+23
n4
4.4569489046639E+31
n5
3.6416404894795E+39
2 √n
9039.1939906166
3 √n
433.93012813303
4 √n
95.074675863853
5 √n
38.234189011227
1 , 2 , 3 , 4 , 6 , 12 , 13 , 26 , 39 , 52 , 78 , 156 , 523763 , 1047526 , 1571289 , 2095052 , 3142578 , 6285156 , 6808919 , 13617838 , 20426757 , 27235676 , 40853514 , 81707028
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81707027
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81707028 can be divided by 24 positive divisors.
The sum of these divisors (counting 81707028) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110111101100000000010100
3
Ternary
12200202010222020
4
Quaternary
10313230000110
5
Quinary
131404111103
6
Senary
12035133140
8
Octal
467540024
10
Decimal
81707028
12
Duodecimal
234441b0
16
Hexadecimal
4dec014
20
Vigesimal
15ad7b8
36
Base36
1cn9jo
md5
1adcb62f70468a541668b08fddf54279
sha1
7e86e20eb9a385e925016133a73e454086c9e3c1
sha256
159a4edb2282dcaf81e920a21ad7908d8aa421cfe4cc6799d35ec107b11a34fa
sha512
e236381d96a29982746c3c826cf847ec31fba8397ea7ac8b510e6994911d88ca1d7ef130707065e0bc47dac74d6b56082f95cae38b607d3c475d9620d1e27162
ripemd-160
5754003ee0ec67717a560d8f0e503ea1c5af45c9
Diameter
163414056
Circumference
513380397.82291
Area
2.0973393269784E+16
Volume
2.2848981748657E+24
Surface area
8.3893573079135E+16
Circumference
513380397.82291
Perimeter
326828112
Area
6676038424592784
Diagonal
115551187.1388
Surface area
40056230547556704
Volume
5.4547925848728E+23
Space diagonal
141520723.83145
Perimeter
245121084
Area
2.8908094361692E+15
Altitude
70760361.915726
Surface area
2.8908094361692E+15
Volume
6.4285347112161E+22
Height
38517062.379599