82718981 is an odd 8-digits composite number following 82718980
and preceding 82718982 . In scientific notation, it is written as 8.2718981 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 81664128 positive integers (up to 82718981) that are relatively prime to 82718981.
82718981 has 8 divisors, whose sum is 83778240
The reverse of 82718981 is 18981728
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-two million seven hundred eighteen thousand nine hundred eighty-one
Scientific notation
8.2718981 × 10^7
Engineering notation
8.2718981 × 10^6
Prime Factorization
97 × 547 × 1559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
82718981
Product of the distinct prime numbers
The prime factorization of 82718981 is 97 × 547 × 1559.
Since it has a total of 3 prime factors.
1 , 8 , 100 , 46 , 420 , 173 , 8338 , 5779 , 76946 , 69607 , 895946 , 216309 , 5506795 , 7379335 , 10992534 , 1787641 , 960235879 , 492612853 , 4980948092 , 9140357799
n×2
165437962
n×3
248156943
n×4
330875924
n×5
413594905
n÷2
41359490.5
n÷3
27572993.666667
n÷3
20679745.25
n÷5
16543796.2
n2
6842429817678361
n3
5.6599882208237E+23
n4
4.6818845809854E+31
n5
3.8728072169872E+39
2 √n
9094.9975810882
3 √n
435.71421140245
4 √n
95.36769673788
5 √n
38.328430441794
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
-82718980
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 82718981 can be divided by 8 positive divisors.
The sum of these divisors (counting 82718981) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011100011000100000101
3
Ternary
12202122120002222
4
Quaternary
10323203010011
5
Quinary
132134001411
6
Senary
12112542125
8
Octal
473430405
10
Decimal
82718981
12
Duodecimal
23851945
16
Hexadecimal
4ee3105
20
Vigesimal
15gjh91
36
Base36
1d8ydh
md5
442c46213bdcdf91579d7fb3422c754c
sha1
50e68628d46e4e9fc16da817416298aac030ddad
sha256
568765abd94f723cecf247fa614cd64b8783eca4afc3d6a267bc4268428ee112
sha512
2b0a0654713e444fda03ff86eb291d3f861fffe0691a7950683fb956e7419e8b9dec71d5e64f8f959c1cac506b83b547fb5624c6c19ace759407240f30866863
ripemd-160
cc25455ea6f13d7816fa88e7f8ddbad5fedd135e
Diameter
165437962
Circumference
519738686.04407
Area
2.1496127247922E+16
Volume
2.3708503218593E+24
Surface area
8.5984508991688E+16
Circumference
519738686.04407
Perimeter
330875924
Area
6842429817678361
Diagonal
116982304.79588
Surface area
41054578906070166
Volume
5.6599882208237E+23
Space diagonal
143273477.84232
Perimeter
248156943
Area
2.9628590228608E+15
Altitude
71636738.921162
Surface area
2.9628590228608E+15
Volume
6.6703600873007E+22
Height
38994101.598627