71312721 is an odd 8-digits composite number following 71312720
and preceding 71312722 . In scientific notation, it is written as 7.1312721 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 46762320 positive integers (up to 71312721) that are relatively prime to 71312721.
71312721 has 8 divisors, whose sum is 96642624
The reverse of 71312721 is 12721317
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
seventy-one million three hundred twelve thousand seven hundred twenty-one
Scientific notation
7.1312721 × 10^7
Engineering notation
7.1312721 × 10^6
Prime Factorization
3 × 61 × 389687
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71312721
Product of the distinct prime numbers
The prime factorization of 71312721 is 3 × 61 × 389687.
Since it has a total of 3 prime factors.
7 , 3 , 86 , 45 , 364 , 836 , 9838 , 1017 , 72947 , 73389 , 375610 , 24695 , 4804641 , 1228538 , 10149342 , 42070528 , 908069239 , 810344580 , 3990729768 , 6358603321
n×2
142625442
n×3
213938163
n×4
285250884
n×5
356563605
n÷2
35656360.5
n÷3
23770907
n÷3
17828180.25
n÷5
14262544.2
n2
5085504176423841
n3
3.6266114047765E+23
n4
2.5862352728424E+31
n5
1.8443147445257E+39
2 √n
8444.6859621895
3 √n
414.68882852792
4 √n
91.894972453282
5 √n
37.207749405029
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71312720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71312721 can be divided by 8 positive divisors.
The sum of these divisors (counting 71312721) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010000000010010101010001
3
Ternary
11222012001122220
4
Quaternary
10100002111101
5
Quinary
121224001341
6
Senary
11024251253
8
Octal
420022521
10
Decimal
71312721
12
Duodecimal
1ba70b29
16
Hexadecimal
4402551
20
Vigesimal
125e1g1
36
Base36
16gh8x
md5
eb61a5b9291978a1f8b83147a67be667
sha1
a987a4ce978342c056b6c7101615841f82767a6d
sha256
ae97f0c103fc19f733523fd55092660fe8887cccfe9b3c889c2840864d0f8558
sha512
fd598d1cde61fb024e4ba6a596a1444d3e2e2b921e0187ae189e1236615d4c2f64869e3bd8eaaeb5e623a7ae9b20161fd73d8a9c705b8894b7fafa8527842f35
ripemd-160
89d58559026438a65adbb88501c05767bfdeda5d
Diameter
142625442
Circumference
448071040.8022
Area
1.5976582560453E+16
Volume
1.5191114328894E+24
Surface area
6.3906330241813E+16
Circumference
448071040.8022
Perimeter
285250884
Area
5085504176423841
Diagonal
100851417.20793
Surface area
30513025058543046
Volume
3.6266114047765E+23
Space diagonal
123517255.99798
Perimeter
213938163
Area
2.2020879039175E+15
Altitude
61758627.998992
Surface area
2.2020879039175E+15
Volume
4.2740025284099E+22
Height
33617139.06931