71291971 is an odd 8-digits composite number following 71291970
and preceding 71291972 . In scientific notation, it is written as 7.1291971 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 65360520 positive integers (up to 71291971) that are relatively prime to 71291971.
71291971 has 8 divisors, whose sum is 77465600
The reverse of 71291971 is 17919217
Previous prime number is 31
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 nine hundred seventy-one
Scientific notation
7.1291971 × 10^7
Engineering notation
7.1291971 × 10^6
Prime Factorization
19 × 31 × 121039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71291971
Product of the distinct prime numbers
The prime factorization of 71291971 is 19 × 31 × 121039.
Since it has a total of 3 prime factors.
2 , 7 , 69 , 71 , 789 , 406 , 1965 , 4600 , 81169 , 38737 , 523815 , 399957 , 3677171 , 5864023 , 34561817 , 71991509 , 624502668 , 661397398 , 7037156521 , 9686325720
n×2
142583942
n×3
213875913
n×4
285167884
n×5
356459855
n÷2
35645985.5
n÷3
23763990.333333
n÷3
17822992.75
n÷5
14258394.2
n2
5082545129064841
n3
3.6234465994748E+23
n4
2.5832264988981E+31
n5
1.8416330864587E+39
2 √n
8443.4572895231
3 √n
414.64860369009
4 √n
91.888287009406
5 √n
37.205583870846
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
-71291970
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 71291971 can be divided by 8 positive divisors.
The sum of these divisors (counting 71291971) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111111101010001000011
3
Ternary
11222011000012101
4
Quaternary
10033331101003
5
Quinary
121222320341
6
Senary
11024011231
8
Octal
417752103
10
Decimal
71291971
12
Duodecimal
1ba60b17
16
Hexadecimal
43fd443
20
Vigesimal
125b9ib
36
Base36
16g18j
md5
65f7435197f415c45ea9a0681a5f9372
sha1
947d213f95950d86c39515af3fb78d05ef6b8e1b
sha256
58e35ea222d2c2fa1279f81d8f32b469946f4c6783d39d5e5cd17df8ef95723c
sha512
7086a72c30f0188da1efca3020db051a085b0d92821977786938e458cf479063680cfce768af503c498308fa34f637ab8a0d912ee385a15f4d4baf18b8e355cc
ripemd-160
e81dd014a6cf3580fa575405c51b009b5672c330
Diameter
142583942
Circumference
447940664.70707
Area
1.5967286439009E+16
Volume
1.5177857623447E+24
Surface area
6.3869145756035E+16
Circumference
447940664.70707
Perimeter
285167884
Area
5082545129064841
Diagonal
100822072.27651
Surface area
30495270774389046
Volume
3.6234465994748E+23
Space diagonal
123481315.94373
Perimeter
213875913
Area
2.2008065988255E+15
Altitude
61740657.971863
Surface area
2.2008065988255E+15
Volume
4.2702727695933E+22
Height
33607357.425503