71357981 is an odd 8-digits composite number following 71357980
and preceding 71357982 . In scientific notation, it is written as 7.1357981 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 70011552 positive integers (up to 71357981) that are relatively prime to 71357981.
71357981 has 4 divisors, whose sum is 72704412
The reverse of 71357981 is 18975317
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
seventy-one million three hundred fifty-seven thousand nine hundred eighty-one
Scientific notation
7.1357981 × 10^7
Engineering notation
7.1357981 × 10^6
Prime Factorization
53 × 1346377
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71357981
Product of the distinct prime numbers
The prime factorization of 71357981 is 53 × 1346377.
Since it has a total of 2 prime factors.
8 , 7 , 14 , 60 , 224 , 440 , 8325 , 8372 , 70366 , 37874 , 212675 , 799315 , 193736 , 8171903 , 73414068 , 25721638 , 853338690 , 923904484 , 3087885893 , 3658015400
n×2
142715962
n×3
214073943
n×4
285431924
n×5
356789905
n÷2
35678990.5
n÷3
23785993.666667
n÷3
17839495.25
n÷5
14271596.2
n2
5091961452396361
n3
3.6335208857283E+23
n4
2.592807143269E+31
n5
1.8501748286606E+39
2 √n
8447.3653289058
3 √n
414.77654007433
4 √n
91.909549715499
5 √n
37.212471130292
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
-71357980
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 71357981 can be divided by 4 positive divisors.
The sum of these divisors (counting 71357981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000001101011000011101
3
Ternary
11222021100202012
4
Quaternary
10100031120131
5
Quinary
121231423411
6
Senary
11025241005
8
Octal
420153035
10
Decimal
71357981
12
Duodecimal
1ba93165
16
Hexadecimal
440d61d
20
Vigesimal
125jej1
36
Base36
16hg65
md5
c38f0848c815c6349dbc0bec337a2b48
sha1
96cbaf4c943c54351bf87a836b5d538d3c01c672
sha256
1ccc4e3aec27158c891204fdae7c000431fcc6f4a2a684b33f1411f688cd4ff0
sha512
05866671030aa9f0d0cea35bcba617734bbcc1d58b3d4acd4f9a1ad0be3e83e974790615d8ecf13446fa3028fdb54d89538778a478bffa62494b73d54c5a5e28
ripemd-160
b27b31c93033fbc1d49ba951610decdce638a411
Diameter
142715962
Circumference
448355417.7692
Area
1.5996868691211E+16
Volume
1.5220056695026E+24
Surface area
6.3987474764843E+16
Circumference
448355417.7692
Perimeter
285431924
Area
5091961452396361
Diagonal
100915424.51376
Surface area
30551768714378166
Volume
3.6335208857283E+23
Space diagonal
123595648.61753
Perimeter
214073943
Area
2.2048839864332E+15
Altitude
61797824.308767
Surface area
2.2048839864332E+15
Volume
4.2821454298024E+22
Height
33638474.837921