71310981 is an odd 8-digits composite number following 71310980
and preceding 71310982 . In scientific notation, it is written as 7.1310981 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 40140144 positive integers (up to 71310981) that are relatively prime to 71310981.
71310981 has 8 divisors, whose sum is 75823264
The reverse of 71310981 is 18901317
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-one million three hundred ten thousand nine hundred eighty-one
Scientific notation
7.1310981 × 10^7
Engineering notation
7.1310981 × 10^6
Prime Factorization
21 × 67 × 50683
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71310981
Product of the distinct prime numbers
The prime factorization of 71310981 is 21 × 67 × 50683.
Since it has a total of 3 prime factors.
4 , 8 , 61 , 67 , 386 , 909 , 1990 , 6459 , 93276 , 52123 , 29633 , 2489 , 2750570 , 2711169 , 43621714 , 60486372 , 647572911 , 571539448 , 1826547181 , 7225225787
n×2
142621962
n×3
213932943
n×4
285243924
n×5
356554905
n÷2
35655490.5
n÷3
23770327
n÷3
17827745.25
n÷5
14262196.2
n2
5085256011182361
n3
3.6263459479356E+23
n4
2.5859828699266E+31
n5
1.8440897530366E+39
2 √n
8444.5829381918
3 √n
414.68545575693
4 √n
91.894411898612
5 √n
37.207567832611
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
-71310980
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 71310981 can be divided by 8 positive divisors.
The sum of these divisors (counting 71310981) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010000000001111010000101
3
Ternary
11222011222021110
4
Quaternary
10100001322011
5
Quinary
121223422411
6
Senary
11024235233
8
Octal
420017205
10
Decimal
71310981
12
Duodecimal
1ba6bb19
16
Hexadecimal
4401e85
20
Vigesimal
125dh91
36
Base36
16gfwl
md5
d7b7bc815feb890aa8deca3c1bfa2975
sha1
07c1697ab7ef599ee026bd7e615d1faf3598531c
sha256
23d17c5d555befa864ff994c4f2f1a8444ea4f1ffbc1f3a1f5a2902a072c07cd
sha512
6f6472a0152340e4405341b19df39b4b955fdadb4ff2eebd51caa9ad47ffb9e90ed07a69aed9352c6896971ab36cb8c1ed638c02c5df11c9f0e26badc36afb21
ripemd-160
2245fee6aec454d1d116f099b1f0ae0b324d2595
Diameter
142621962
Circumference
448060108.05976
Area
1.5975802926354E+16
Volume
1.519000238588E+24
Surface area
6.3903211705415E+16
Circumference
448060108.05976
Perimeter
285243924
Area
5085256011182361
Diagonal
100848956.47633
Surface area
30511536067094166
Volume
3.6263459479356E+23
Space diagonal
123514242.22958
Perimeter
213932943
Area
2.2019804452157E+15
Altitude
61757121.114789
Surface area
2.2019804452157E+15
Volume
4.2736896845227E+22
Height
33616318.825443