68291281 is an odd 8-digits composite number following 68291280
and preceding 68291282 . In scientific notation, it is written as 6.8291281 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 65710080 positive integers (up to 68291281) that are relatively prime to 68291281.
68291281 has 8 divisors, whose sum is 70918344
The reverse of 68291281 is 18219286
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixty-eight million two hundred ninety-one thousand two hundred eighty-one
Scientific notation
6.8291281 × 10^7
Engineering notation
6.8291281 × 10^6
Prime Factorization
41 × 73 × 22817
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68291281
Product of the distinct prime numbers
The prime factorization of 68291281 is 41 × 73 × 22817.
Since it has a total of 3 prime factors.
8 , 4 , 11 , 54 , 329 , 114 , 6060 , 2357 , 25087 , 31024 , 432766 , 833531 , 8067939 , 3619915 , 75763420 , 38787003 , 350657533 , 136867683 , 9200277803 , 5664631798
n×2
136582562
n×3
204873843
n×4
273165124
n×5
341456405
n÷2
34145640.5
n÷3
22763760.333333
n÷3
17072820.25
n÷5
13658256.2
n2
4663699060620961
n3
3.184899830483E+23
n4
2.1750088928037E+31
n5
1.4853414347596E+39
2 √n
8263.8538830258
3 √n
408.74747834236
4 √n
90.905741749494
5 √n
36.886975888808
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
-68291280
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 68291281 can be divided by 8 positive divisors.
The sum of these divisors (counting 68291281) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000100100000101011010001
3
Ternary
11202111120000201
4
Quaternary
10010200223101
5
Quinary
114440310111
6
Senary
10435415201
8
Octal
404405321
10
Decimal
68291281
12
Duodecimal
1aa54501
16
Hexadecimal
4120ad1
20
Vigesimal
116g841
36
Base36
14npw1
md5
64afd5c8e2f705de31c599b99393a7f8
sha1
7de639c5a49a234a54b28040368117b888366a7b
sha256
36dbec04ca36bcfa72856924d075a1b830bdcf3ec69e4522ba08690b3965eadf
sha512
8fe453fc9b68c58ec426ebf4c5d7a4f5678657e24748a2fac28cf1c67cbe9c3f4da1bd2f88a8a1d4893d0789104653c6fc6454b6f2860d78b7f5f02eee114d7a
ripemd-160
ba7eb46328f342d26ec4eac590eb140769c1d076
Diameter
136582562
Circumference
429086773.38767
Area
1.46514427074E+16
Volume
1.3340877213153E+24
Surface area
5.8605770829602E+16
Circumference
429086773.38767
Perimeter
273165124
Area
4663699060620961
Diagonal
96578455.782032
Surface area
27982194363725766
Volume
3.184899830483E+23
Space diagonal
118283968.40596
Perimeter
204873843
Area
2.0194409310517E+15
Altitude
59141984.202982
Surface area
2.0194409310517E+15
Volume
3.7534404458907E+22
Height
32192818.594011