81708047 is an odd 8-digits composite number following 81708046
and preceding 81708048 . In scientific notation, it is written as 8.1708047 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 80865600 positive integers (up to 81708047) that are relatively prime to 81708047.
81708047 has 4 divisors, whose sum is 82550496
The reverse of 81708047 is 74080718
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million seven hundred eight thousand forty-seven
Scientific notation
8.1708047 × 10^7
Engineering notation
8.1708047 × 10^6
Prime Factorization
97 × 842351
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81708047
Product of the distinct prime numbers
The prime factorization of 81708047 is 97 × 842351.
Since it has a total of 2 prime factors.
7 , 6 , 10 , 53 , 201 , 386 , 5874 , 6864 , 64844 , 26877 , 643304 , 7283 , 7705198 , 3644469 , 69127065 , 91070167 , 809949401 , 279766068 , 1519456169 , 3560785013
n×2
163416094
n×3
245124141
n×4
326832188
n×5
408540235
n÷2
40854023.5
n÷3
27236015.666667
n÷3
20427011.75
n÷5
16341609.4
n2
6676204944554209
n3
5.4549966739127E+23
n4
4.457171246169E+31
n5
3.6418675766903E+39
2 √n
9039.250356086
3 √n
433.93193202911
4 √n
95.074972290745
5 √n
38.234284377428
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
-81708046
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 81708047 can be divided by 4 positive divisors.
The sum of these divisors (counting 81708047) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111101100010000001111
3
Ternary
12200202012100222
4
Quaternary
10313230100033
5
Quinary
131404124142
6
Senary
12035141555
8
Octal
467542017
10
Decimal
81708047
12
Duodecimal
234448bb
16
Hexadecimal
4dec40f
20
Vigesimal
15ada27
36
Base36
1cnabz
md5
7a565762c16b88096e9a9813b9ff4d51
sha1
bb385c50ae786bfe6a20ca3a88b351a240c5ab93
sha256
617d51d971f7bea9db5f2911072212175e8b660223341f35d9a15c45fd5eadc4
sha512
741e58e38e6f4a2198b247b4dbe9441ed4ac9befbdf460922056d13eecf497ecb57b79ea3dfcdfa13320db7044d2efda9f58248ebb01990ef3eac34b21609399
ripemd-160
6d53804aa1077d0e90ee193750d846026259ae4b
Diameter
163416094
Circumference
513386800.38874
Area
2.0973916407671E+16
Volume
2.2849836634828E+24
Surface area
8.3895665630685E+16
Circumference
513386800.38874
Perimeter
326832188
Area
6676204944554209
Diagonal
115552628.22242
Surface area
40057229667325254
Volume
5.4549966739127E+23
Space diagonal
141522488.79123
Perimeter
245124141
Area
2.8908815414276E+15
Altitude
70761244.395613
Surface area
2.8908815414276E+15
Volume
6.4287752324562E+22
Height
38517542.740806