81282107 is an odd 8-digits composite number following 81282106
and preceding 81282108 . In scientific notation, it is written as 8.1282107 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 81200856 positive integers (up to 81282107) that are relatively prime to 81282107.
81282107 has 4 divisors, whose sum is 81363360
The reverse of 81282107 is 70128218
Previous prime number is 1013
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million two hundred eighty-two thousand one hundred seven
Scientific notation
8.1282107 × 10^7
Engineering notation
8.1282107 × 10^6
Prime Factorization
1013 × 80239
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81282107
Product of the distinct prime numbers
The prime factorization of 81282107 is 1013 × 80239.
Since it has a total of 2 prime factors.
2 , 10 , 52 , 32 , 504 , 836 , 9380 , 818 , 76118 , 60685 , 737338 , 25940 , 266063 , 2456650 , 41003864 , 37910791 , 230838407 , 932735132 , 691735165 , 8831613540
n×2
162564214
n×3
243846321
n×4
325128428
n×5
406410535
n÷2
40641053.5
n÷3
27094035.666667
n÷3
20320526.75
n÷5
16256421.4
n2
6606780918359449
n3
5.3701307353165E+23
n4
4.3649554103199E+31
n5
3.5479277271185E+39
2 √n
9015.6589886708
3 √n
433.17659610899
4 √n
94.950824054722
5 √n
38.194338309655
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
-81282106
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 81282107 can be divided by 4 positive divisors.
The sum of these divisors (counting 81282107) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110000100010000111011
3
Ternary
12122221120002102
4
Quaternary
10312010100323
5
Quinary
131302011412
6
Senary
12022054015
8
Octal
466042073
10
Decimal
81282107
12
Duodecimal
2327a30b
16
Hexadecimal
4d8443b
20
Vigesimal
1580557
36
Base36
1ce5ob
md5
b56211af65cc941317e6c0bdc8167df5
sha1
7fd4c7352787c026c5a32372317d671a21429b9e
sha256
b3c759949a5d6f9a8bb22e5cee5ff30b88e685179714e35aba5b539864122880
sha512
f3b6f2d35db74c9d3ffb02281377759872a7c86cdd67c6809a8066f79a7aa152878a99d4fd22f7a4ad50d571014cd8cabb7fc8bc7e0a2dafb5f9009b9e80d5f4
ripemd-160
6c2372fc8f0db19d05da2f209a252fb2a377ef76
Diameter
162564214
Circumference
510710540.439
Area
2.0755814396995E+16
Volume
2.2494351022516E+24
Surface area
8.3023257587981E+16
Circumference
510710540.439
Perimeter
325128428
Area
6606780918359449
Diagonal
114950258.09766
Surface area
39640685510156694
Volume
5.3701307353165E+23
Space diagonal
140784739.07025
Perimeter
243846321
Area
2.8608200562688E+15
Altitude
70392369.535125
Surface area
2.8608200562688E+15
Volume
6.3287597646677E+22
Height
38316752.69922