71281285 is an odd 8-digits composite number following 71281284
and preceding 71281286 . In scientific notation, it is written as 7.1281285 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 56614224 positive integers (up to 71281285) that are relatively prime to 71281285.
71281285 has 8 divisors, whose sum is 86153760
The reverse of 71281285 is 58218217
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-one million two hundred eighty-one thousand two hundred eighty-five
Scientific notation
7.1281285 × 10^7
Engineering notation
7.1281285 × 10^6
Prime Factorization
5 × 139 × 102563
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71281285
Product of the distinct prime numbers
The prime factorization of 71281285 is 5 × 139 × 102563.
Since it has a total of 3 prime factors.
7 , 6 , 43 , 93 , 818 , 654 , 7889 , 9847 , 55678 , 99317 , 334767 , 521114 , 4125474 , 505776 , 65691787 , 42041650 , 188178924 , 991222708 , 1710497099 , 6374900068
n×2
142562570
n×3
213843855
n×4
285125140
n×5
356406425
n÷2
35640642.5
n÷3
23760428.333333
n÷3
17820321.25
n÷5
14256257
n2
5081021591251225
n3
3.6218174813713E+23
n4
2.5816780410761E+31
n5
1.8402532822419E+39
2 √n
8442.8244681505
3 √n
414.62788533841
4 √n
91.884843517037
5 √n
37.204468450124
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
-71281284
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 71281285 can be divided by 8 positive divisors.
The sum of these divisors (counting 71281285) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111111010101010000101
3
Ternary
11222010110112121
4
Quaternary
10033322222011
5
Quinary
121222000120
6
Senary
11023445541
8
Octal
417725205
10
Decimal
71281285
12
Duodecimal
1ba568b1
16
Hexadecimal
43faa85
20
Vigesimal
125a345
36
Base36
16fszp
md5
7ee4600443f0da025e4c43685dc8bab0
sha1
22c9f71566a59ebb00dc6252a14a4adb7c1b9751
sha256
2ec77d0ce834b979ce97ecd7ee95f8658772706abe7b1405292c3f2a5fb3a180
sha512
e6ac221e5f5887be869bce799c3059a72a5a8d2a1df06b13360b42117cbb77654018193249cc17785f64fa930160616a507f0338e6af85039e2acfbd0018bf80
ripemd-160
ce14653672555cb3e19a265aa4c5db4065dcaffe
Diameter
142562570
Circumference
447873522.58888
Area
1.5962500103806E+16
Volume
1.5171033589492E+24
Surface area
6.3850000415224E+16
Circumference
447873522.58888
Perimeter
285125140
Area
5081021591251225
Diagonal
100806959.99038
Surface area
30486129547507350
Volume
3.6218174813713E+23
Space diagonal
123462807.2488
Perimeter
213843855
Area
2.2001468876004E+15
Altitude
61731403.624399
Surface area
2.2001468876004E+15
Volume
4.2683528354961E+22
Height
33602319.996794