71318981 is an odd 8-digits prime number following 71318980
and preceding 71318982 . In scientific notation, it is written as 7.1318981 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 71318980 positive integers (up to 71318981) that are relatively prime to 71318981.
71318981 has 2 divisors, whose sum is 71318982
The reverse of 71318981 is 18981317
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 38 Digital Root 2
Name
seventy-one million three hundred eighteen thousand nine hundred eighty-one
Scientific notation
7.1318981 × 10^7
Engineering notation
7.1318981 × 10^6
Prime Factorization
71318981
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
71318981 Product of the distinct prime numbers
The prime factorization of 71318981 is 71318981.
Since it has a total of 1 prime factors.
2 , 3 , 6 , 48 , 494 , 969 , 5697 , 6598 , 21588 , 70033 , 913522 , 63354 , 7195714 , 5823970 , 59200571 , 38635642 , 95657515 , 44240098 , 297169817 , 7552968946
n×2
142637962
n×3
213956943
n×4
285275924
n×5
356594905
n÷2
35659490.5
n÷3
23772993.666667
n÷3
17829745.25
n÷5
14263796.2
n2
5086397050878361
n3
3.6275665463005E+23
n4
2.5871434959184E+31
n5
1.8451243782968E+39
2 √n8445.0566013497
3 √n414.70096229627
4 √n91.896989076627
5 √n37.208402619013
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
71318982 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
35659491 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
8445.0566605559 Returns the nth root of the product of n divisors
H Harmonic Mean
1.999999971957 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71318981 can be divided by 2 positive divisors.
The sum of these divisors (counting 71318981) is 71318982, the average is 35659491.
Base
System
Value
2
Binary
100010000000011110111000101
3
Ternary
11222012101020202
4
Quaternary
10100003313011
5
Quinary
121224201411
6
Senary
11024340245
8
Octal
420036705
10
Decimal
71318981
12
Duodecimal
1ba74685
16
Hexadecimal
4403dc5
20
Vigesimal
125eh91
36
Base36
16gm2t
md5
b616a0c485c48757d83301a3a8c84a8b
sha1
0b197e766747c55f0b2400a17179e2ee154b3a89
sha256
ab05c7a84517abc0893246abda42aa4a32e09a10655e86a43c757fe0d2ce59f9
sha512
07e82262b6ab54e6ddf1d6bdeff9f05b484c5199676881433bdcee1a3a90e0bf37e4d8ec8bc887318c70d99199948ea7063bc50e330d601a7f3f64c9929be68f
ripemd-160
22d50d4d25285515e41740e16a487940d9447c4d
Diameter
142637962
Circumference
448110373.54222
Area
1.597938760828E+16
Volume
1.5195115216354E+24
Surface area
6.3917550433121E+16
Circumference
448110373.54222
Perimeter
285275924
Area
5086397050878361
Diagonal
100860270.18483
Surface area
30518382305270166
Volume
3.6275665463005E+23
Space diagonal
123528098.63604
Perimeter
213956943
Area
2.2024745298975E+15
Altitude
61764049.31802
Surface area
2.2024745298975E+15
Volume
4.2751281734909E+22
Height
33620090.06161