71291881 is an odd 8-digits composite number following 71291880
and preceding 71291882 . In scientific notation, it is written as 7.1291881 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 66552640 positive integers (up to 71291881) that are relatively prime to 71291881.
71291881 has 16 divisors, whose sum is 76204800
The reverse of 71291881 is 18819217
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-one million two hundred ninety-one thousand eight hundred eighty-one
Scientific notation
7.1291881 × 10^7
Engineering notation
7.1291881 × 10^6
Prime Factorization
23 × 293 × 71 × 149
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71291881
Product of the distinct prime numbers
The prime factorization of 71291881 is 23 × 293 × 71 × 149.
Since it has a total of 4 prime factors.
9 , 10 , 58 , 92 , 19 , 488 , 2492 , 5334 , 42862 , 64994 , 856164 , 650821 , 6023455 , 9173905 , 49417698 , 81612767 , 464236237 , 923178530 , 6917590026 , 172795693
n×2
142583762
n×3
213875643
n×4
285167524
n×5
356459405
n÷2
35645940.5
n÷3
23763960.333333
n÷3
17822970.25
n÷5
14258376.2
n2
5082532296518161
n3
3.6234328766203E+23
n4
2.583213454515E+31
n5
1.8416214619688E+39
2 √n
8443.451959951
3 √n
414.64842920392
4 √n
91.888258009122
5 √n
37.205574477069
1 , 23 , 71 , 149 , 293 , 1633 , 3427 , 6739 , 10579 , 20803 , 43657 , 243317 , 478469 , 1004111 , 3099647 , 71291881
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71291880
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71291881 can be divided by 16 positive divisors.
The sum of these divisors (counting 71291881) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100001111111101001111101001
3
Ternary
11222011000002001
4
Quaternary
10033331033221
5
Quinary
121222320011
6
Senary
11024011001
8
Octal
417751751
10
Decimal
71291881
12
Duodecimal
1ba60a61
16
Hexadecimal
43fd3e9
20
Vigesimal
125b9e1
36
Base36
16g161
md5
d83b0f4a6a33557d531f50f39e9406cc
sha1
79da8a4df331700ca5f7deab90b5eb7048858644
sha256
2a4349b9da5d3d40d0e388e5154d4ef671d1398084f50dff101f989f03b07c7e
sha512
7f3622db8b4040256fd8fc87a8655b418b69b4f40197b291fffa579c9dbe2b476746f8c629c7906b029c5182d0ff9c87fa12c2b5fb32c37b8e90cb7e0aff2106
ripemd-160
3259b16250e562bd8e8797d5c651b41edc980280
Diameter
142583762
Circumference
447940099.2204
Area
1.5967246124374E+16
Volume
1.5177800141288E+24
Surface area
6.3868984497497E+16
Circumference
447940099.2204
Perimeter
285167524
Area
5082532296518161
Diagonal
100821944.99729
Surface area
30495193779108966
Volume
3.6234328766203E+23
Space diagonal
123481160.05915
Perimeter
213875643
Area
2.2008010421698E+15
Altitude
61740580.029577
Surface area
2.2008010421698E+15
Volume
4.2702565970541E+22
Height
33607314.999096