81707089 is an odd 8-digits prime number following 81707088
and preceding 81707090 . In scientific notation, it is written as 8.1707089 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 81707088 positive integers (up to 81707089) that are relatively prime to 81707089.
81707089 has 2 divisors, whose sum is 81707090
The reverse of 81707089 is 98070718
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million seven hundred seven thousand eighty-nine
Scientific notation
8.1707089 × 10^7
Engineering notation
8.1707089 × 10^6
Prime Factorization
81707089
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81707089
Product of the distinct prime numbers
The prime factorization of 81707089 is 81707089.
Since it has a total of 1 prime factors.
2 , 6 , 2 , 25 , 369 , 386 , 4449 , 3983 , 95663 , 5463 , 493125 , 375701 , 1060892 , 1920670 , 32990770 , 86110607 , 714970947 , 846746641 , 8052685506 , 4568972326
n×2
163414178
n×3
245121267
n×4
326828356
n×5
408535445
n÷2
40853544.5
n÷3
27235696.333333
n÷3
20426772.25
n÷5
16341417.8
n2
6676048392853921
n3
5.4548048020322E+23
n4
4.4569622143727E+31
n5
3.6416540831939E+39
2 √n
9039.1973648107
3 √n
433.93023611938
4 √n
95.074693608818
5 √n
38.234194720123
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81707090
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40853545
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9039.1974201253
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999755223
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81707089 can be divided by 2 positive divisors.
The sum of these divisors (counting 81707089) is 81707090, the average is 40853545.
Base
System
Value
2
Binary
100110111101100000001010001
3
Ternary
12200202011001111
4
Quaternary
10313230001101
5
Quinary
131404111324
6
Senary
12035133321
8
Octal
467540121
10
Decimal
81707089
12
Duodecimal
23444241
16
Hexadecimal
4dec051
20
Vigesimal
15ad7e9
36
Base36
1cn9ld
md5
1d31205654770d7fe2a70d2ab4883f48
sha1
7e9a69b5c253b04673ae2ff70f085fac7d92f546
sha256
3485a4d0957af8d847237ba1e99efbac854605cfada7e522fdd6c18b73b3b7fc
sha512
ee30d102e3f0415f5cd1a707f78951d8d5054b9cc8aa29ae6eba9438eb2193d8f220f6366611d0ca07327c821af129f9022e880e53d114ca78379ff3095bce81
ripemd-160
d7240df7c843e25b9c3afa59808a89eef03d3693
Diameter
163414178
Circumference
513380781.09721
Area
2.0973424586E+16
Volume
2.2849032923774E+24
Surface area
8.3893698343999E+16
Circumference
513380781.09721
Perimeter
326828356
Area
6676048392853921
Diagonal
115551273.40583
Surface area
40056290357123526
Volume
5.4548048020322E+23
Space diagonal
141520829.48655
Perimeter
245121267
Area
2.8908137525529E+15
Altitude
70760414.743276
Surface area
2.8908137525529E+15
Volume
6.4285491092765E+22
Height
38517091.135275