71291391 is an odd 8-digits composite number following 71291390
and preceding 71291392 . In scientific notation, it is written as 7.1291391 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 47527592 positive integers (up to 71291391) that are relatively prime to 71291391.
71291391 has 4 divisors, whose sum is 95055192
The reverse of 71291391 is 19319217
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-one million two hundred ninety-one thousand three hundred ninety-one
Scientific notation
7.1291391 × 10^7
Engineering notation
7.1291391 × 10^6
Prime Factorization
3 × 23763797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71291391
Product of the distinct prime numbers
The prime factorization of 71291391 is 3 × 23763797.
Since it has a total of 2 prime factors.
2 , 4 , 77 , 81 , 571 , 508 , 6158 , 2265 , 28617 , 63172 , 312897 , 4297 , 8885067 , 1910002 , 6637510 , 75716184 , 536430347 , 370363144 , 6701304291 , 887642264
n×2
142582782
n×3
213874173
n×4
285165564
n×5
356456955
n÷2
35645695.5
n÷3
23763797
n÷3
17822847.75
n÷5
14258278.2
n2
5082462430714881
n3
3.623358163909E+23
n4
2.5831424359628E+31
n5
1.8415581741092E+39
2 √n
8443.4229433329
3 √n
414.64747922105
4 √n
91.888100118203
5 √n
37.205523333008
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
-71291390
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 71291391 can be divided by 4 positive divisors.
The sum of these divisors (counting 71291391) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111111101000111111111
3
Ternary
11222010222101220
4
Quaternary
10033331013333
5
Quinary
121222311031
6
Senary
11024004423
8
Octal
417750777
10
Decimal
71291391
12
Duodecimal
1ba60713
16
Hexadecimal
43fd1ff
20
Vigesimal
125b89b
36
Base36
16g0sf
md5
18397731f92768b1e9913d68cdf1a22f
sha1
8d0988956ee4ea899de6729d57a775a348b16dc3
sha256
01dcedcd9d3e4b6452e2dd6b250c45c82da10f21786c714084c3cb961300a426
sha512
06db68345ba0d7a2e5bc133ef55e4252d0b0a65aaf0b1e53a6cc7f287e3f4457aaa0435e9cceff0fd6cabb0b25c81b5e04a304a6f82c7308428d5d2d560a2761
ripemd-160
9932b93db48f3285b509a85c19340d19a5f6247c
Diameter
142582782
Circumference
447937020.45959
Area
1.596702663448E+16
Volume
1.5177487185415E+24
Surface area
6.386810653792E+16
Circumference
447937020.45959
Perimeter
285165564
Area
5082462430714881
Diagonal
100821252.03264
Surface area
30494774584289286
Volume
3.623358163909E+23
Space diagonal
123480311.35426
Perimeter
213874173
Area
2.2007707893895E+15
Altitude
61740155.677129
Surface area
2.2007707893895E+15
Volume
4.2701685472795E+22
Height
33607084.010881