81708069 is an odd 8-digits composite number following 81708068
and preceding 81708070 . In scientific notation, it is written as 8.1708069 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 51267776 positive integers (up to 81708069) that are relatively prime to 81708069.
81708069 has 4 divisors, whose sum is 83310240
The reverse of 81708069 is 96080718
Previous prime number is 51
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million seven hundred eight thousand sixty-nine
Scientific notation
8.1708069 × 10^7
Engineering notation
8.1708069 × 10^6
Prime Factorization
51 × 1602119
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81708069
Product of the distinct prime numbers
The prime factorization of 81708069 is 51 × 1602119.
Since it has a total of 2 prime factors.
9 , 9 , 84 , 93 , 866 , 375 , 7393 , 1620 , 22747 , 56225 , 998645 , 862439 , 2036507 , 754231 , 23437075 , 71475824 , 24604309 , 971862383 , 4656737871 , 6387568151
n×2
163416138
n×3
245124207
n×4
326832276
n×5
408540345
n÷2
40854034.5
n÷3
27236023
n÷3
20427017.25
n÷5
16341613.8
n2
6676208539708761
n3
5.4550010802091E+23
n4
4.457176046568E+31
n5
3.6418724795813E+39
2 √n
9039.2515730009
3 √n
433.93197097469
4 √n
95.07497869051
5 √n
38.234286436354
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
-81708068
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 81708069 can be divided by 4 positive divisors.
The sum of these divisors (counting 81708069) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111101100010000100101
3
Ternary
12200202012101210
4
Quaternary
10313230100211
5
Quinary
131404124234
6
Senary
12035142033
8
Octal
467542045
10
Decimal
81708069
12
Duodecimal
23444919
16
Hexadecimal
4dec425
20
Vigesimal
15ada39
36
Base36
1cnacl
md5
54bd210f3d8e06919f10e4c139803ccf
sha1
1af4519784efded8001672fd9c3c6414dee98b97
sha256
eb6cccd1d793ad6f8e485749baaa469bbba81529a715e5874a610ddcde6be78d
sha512
a8616442ea64f5c8468df9a10b4949ceeb1aef7c982870788a1f5e80a78b3a6138ac53f39ae40ab2dfb36412e5236c366c805a948a4fe815c4281a76a4655d5f
ripemd-160
3c2b68645f8137da61b93e7763a33c2f37cf3c01
Diameter
163416138
Circumference
513386938.61882
Area
2.0973927702182E+16
Volume
2.2849855091879E+24
Surface area
8.389571080873E+16
Circumference
513386938.61882
Perimeter
326832276
Area
6676208539708761
Diagonal
115552659.33512
Surface area
40057251238252566
Volume
5.4550010802091E+23
Space diagonal
141522526.89634
Perimeter
245124207
Area
2.8908830981752E+15
Altitude
70761263.448172
Surface area
2.8908830981752E+15
Volume
6.4287804253264E+22
Height
38517553.111706