71387681 is an odd 8-digits composite number following 71387680
and preceding 71387682 . In scientific notation, it is written as 7.1387681 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 71350272 positive integers (up to 71387681) that are relatively prime to 71387681.
71387681 has 4 divisors, whose sum is 71425092
The reverse of 71387681 is 18678317
Previous prime number is 2017
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
seventy-one million three hundred eighty-seven thousand six hundred eighty-one
Scientific notation
7.1387681 × 10^7
Engineering notation
7.1387681 × 10^6
Prime Factorization
2017 × 35393
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71387681
Product of the distinct prime numbers
The prime factorization of 71387681 is 2017 × 35393.
Since it has a total of 2 prime factors.
4 , 2 , 84 , 20 , 534 , 450 , 8618 , 6926 , 53099 , 54748 , 369634 , 722734 , 5007157 , 1159562 , 1893605 , 8440088 , 970825299 , 322081503 , 6978293808 , 2600044718
n×2
142775362
n×3
214163043
n×4
285550724
n×5
356938405
n÷2
35693840.5
n÷3
23795893.666667
n÷3
17846920.25
n÷5
14277536.2
n2
5096200998557761
n3
3.6380597119692E+23
n4
2.5971264617701E+31
n5
1.854028353695E+39
2 √n
8449.1230905935
3 √n
414.83407699069
4 √n
91.91911167213
5 √n
37.215568265112
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
-71387680
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 71387681 can be divided by 4 positive divisors.
The sum of these divisors (counting 71387681) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010100101000100001
3
Ternary
11222022212111012
4
Quaternary
10100110220201
5
Quinary
121233401211
6
Senary
11030030305
8
Octal
420245041
10
Decimal
71387681
12
Duodecimal
1baa8395
16
Hexadecimal
4414a21
20
Vigesimal
1263941
36
Base36
16i335
md5
d896c2fedfc6d6b042d8f857e102c861
sha1
d623716fadf39dd8e23905e2fd5ff4750a406e00
sha256
3c218f02a5e487019d5c36e62bea793f70215c276f48d455526da7367ddb2a9f
sha512
7a2ccea7682629dcedbe8d653e68bac3f9a8c7d9aa6f7bdb0430fe643c9a558ff096274705d88375deb1afb1fa5b11026cb82e4c3a3dee63091d61f8632dc925
ripemd-160
fd4bf091b8e2750976f5a6df81047cb83c33c5c3
Diameter
142775362
Circumference
448542028.37282
Area
1.6010187618286E+16
Volume
1.5239068885925E+24
Surface area
6.4040750473144E+16
Circumference
448542028.37282
Perimeter
285550724
Area
5096200998557761
Diagonal
100957426.65656
Surface area
30577205991346566
Volume
3.6380597119692E+23
Space diagonal
123647090.52652
Perimeter
214163043
Area
2.2067197637713E+15
Altitude
61823545.26326
Surface area
2.2067197637713E+15
Volume
4.287494487825E+22
Height
33652475.552188