81708061 is an odd 8-digits composite number following 81708060
and preceding 81708062 . In scientific notation, it is written as 8.1708061 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 81682912 positive integers (up to 81708061) that are relatively prime to 81708061.
81708061 has 4 divisors, whose sum is 81733212
The reverse of 81708061 is 16080718
Previous prime number is 21317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million seven hundred eight thousand sixty-one
Scientific notation
8.1708061 × 10^7
Engineering notation
8.1708061 × 10^6
Prime Factorization
21317 × 3833
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81708061
Product of the distinct prime numbers
The prime factorization of 81708061 is 21317 × 3833.
Since it has a total of 2 prime factors.
9 , 2 , 19 , 11 , 941 , 286 , 6132 , 6062 , 82589 , 6779 , 240479 , 531724 , 3086667 , 6240282 , 31814266 , 76849370 , 309510986 , 184818359 , 2024732863 , 5179250005
n×2
163416122
n×3
245124183
n×4
326832244
n×5
408540305
n÷2
40854030.5
n÷3
27236020.333333
n÷3
20427015.25
n÷5
16341612.2
n2
6676207232379721
n3
5.4549994779192E+23
n4
4.4571743009679E+31
n5
3.6418706967112E+39
2 √n
9039.2511304864
3 √n
433.93195681266
4 √n
95.074976363323
5 √n
38.234285687654
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
-81708060
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 81708061 can be divided by 4 positive divisors.
The sum of these divisors (counting 81708061) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111101100010000011101
3
Ternary
12200202012101111
4
Quaternary
10313230100131
5
Quinary
131404124221
6
Senary
12035142021
8
Octal
467542035
10
Decimal
81708061
12
Duodecimal
23444911
16
Hexadecimal
4dec41d
20
Vigesimal
15ada31
36
Base36
1cnacd
md5
0d6c92270a8bd1e7bffa961671acb0eb
sha1
4ca6456140dcc48764d9b12e418f0f13be6cec3f
sha256
065a3f2cf395098c190d3190424839a8316b16bbb5b51822d4c94cc98db74e30
sha512
8c7b98a855c9310c4cee0535c89462ca63382c3173dd4b875553c7f1df4b6b2c8702b6af74db1b4834c05ddc565a4907380e3bf587649e489f1e935b231a1f1f
ripemd-160
456ab0806f75822f4943e1d3b98b15c6da575fc5
Diameter
163416122
Circumference
513386888.35333
Area
2.0973923595087E+16
Volume
2.2849848380223E+24
Surface area
8.3895694380349E+16
Circumference
513386888.35333
Perimeter
326832244
Area
6676207232379721
Diagonal
115552648.02141
Surface area
40057243394278326
Volume
5.4549994779192E+23
Space diagonal
141522513.03994
Perimeter
245124183
Area
2.8908825320851E+15
Altitude
70761256.519969
Surface area
2.8908825320851E+15
Volume
6.4287785370096E+22
Height
38517549.340469