68389939 is an odd 8-digits composite number following 68389938
and preceding 68389940 . In scientific notation, it is written as 6.8389939 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 68373256 positive integers (up to 68389939) that are relatively prime to 68389939.
68389939 has 4 divisors, whose sum is 68406624
The reverse of 68389939 is 93998386
Previous prime number is 7247
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
sixty-eight million three hundred eighty-nine thousand nine hundred thirty-nine
Scientific notation
6.8389939 × 10^7
Engineering notation
6.8389939 × 10^6
Prime Factorization
7247 × 9437
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68389939
Product of the distinct prime numbers
The prime factorization of 68389939 is 7247 × 9437.
Since it has a total of 2 prime factors.
10 , 9 , 87 , 18 , 267 , 808 , 1010 , 9349 , 4793 , 34329 , 684970 , 664221 , 2997987 , 9832524 , 48800854 , 16288689 , 542010297 , 242998832 , 8958019825 , 6135840564
n×2
136779878
n×3
205169817
n×4
273559756
n×5
341949695
n÷2
34194969.5
n÷3
22796646.333333
n÷3
17097484.75
n÷5
13677987.8
n2
4677183756423721
n3
3.1987231179361E+23
n4
2.1876047891354E+31
n5
1.4961015808508E+39
2 √n
8269.8209775061
3 √n
408.94421797693
4 √n
90.938556055757
5 √n
36.897627597396
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
-68389938
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 68389939 can be divided by 4 positive divisors.
The sum of these divisors (counting 68389939) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000100111000110000110011
3
Ternary
11202200120100201
4
Quaternary
10010320300303
5
Quinary
120001434224
6
Senary
10441500031
8
Octal
404706063
10
Decimal
68389939
12
Duodecimal
1aaa1617
16
Hexadecimal
4138c33
20
Vigesimal
1178egj
36
Base36
14pu0j
md5
e9c75b285874fdc2f2a80bf17c4fd127
sha1
e35d9dadf5b16b3ba5c3db1e2d6b8292fb162271
sha256
c792f6c0271e9ea53eae5933f0284317a552b1ea7d399a35f4d2b25ac46afaee
sha512
5a43361d1ba76471ec34aa370929985dca8bd1e5b2fed68182b7f6bf1daf6cb09a83fe98d8229f4f57e4ac3a6fa1cd414d447fea51ed47ca96b9fb9f4ae9a9ad
ripemd-160
7c072e9dc3cd759d6c82c9cb2b0ebf5a0b15b738
Diameter
136779878
Circumference
429706659.88371
Area
1.469380612867E+16
Volume
1.3398780064234E+24
Surface area
5.8775224514681E+16
Circumference
429706659.88371
Perimeter
273559756
Area
4677183756423721
Diagonal
96717979.263669
Surface area
28063102538542326
Volume
3.1987231179361E+23
Space diagonal
118454849.07454
Perimeter
205169817
Area
2.0252799756154E+15
Altitude
59227424.537268
Surface area
2.0252799756154E+15
Volume
3.7697313463846E+22
Height
32239326.421223