68090945 is an odd 8-digits composite number following 68090944
and preceding 68090946 . In scientific notation, it is written as 6.8090945 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 49420800 positive integers (up to 68090945) that are relatively prime to 68090945.
68090945 has 16 divisors, whose sum is 88172112
The reverse of 68090945 is 54909086
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-eight million ninety thousand nine hundred forty-five
Scientific notation
6.8090945 × 10^7
Engineering notation
6.8090945 × 10^6
Prime Factorization
5 × 793 × 13 × 1321
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68090945
Product of the distinct prime numbers
The prime factorization of 68090945 is 5 × 793 × 13 × 1321.
Since it has a total of 4 prime factors.
7 , 7 , 39 , 71 , 726 , 993 , 4250 , 3063 , 71870 , 25080 , 688607 , 682157 , 850936 , 6991394 , 70437670 , 66271835 , 691529922 , 977673373 , 2286127826 , 5014474690
n×2
136181890
n×3
204272835
n×4
272363780
n×5
340454725
n÷2
34045472.5
n÷3
22696981.666667
n÷3
17022736.25
n÷5
13618189
n2
4636376790993025
n3
3.1569527707478E+23
n4
2.1495989748059E+31
n5
1.4636822556556E+39
2 √n
8251.7237593124
3 √n
408.3473929168
4 √n
90.838999110032
5 √n
36.865308479093
1 , 5 , 13 , 65 , 793 , 1321 , 3965 , 6605 , 10309 , 17173 , 51545 , 85865 , 1047553 , 5237765 , 13618189 , 68090945
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68090944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68090945 can be divided by 16 positive divisors.
The sum of these divisors (counting 68090945) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000011101111110001000001
3
Ternary
11202010101012212
4
Quaternary
10003233301001
5
Quinary
114412402240
6
Senary
10431231505
8
Octal
403576101
10
Decimal
68090945
12
Duodecimal
1a978595
16
Hexadecimal
40efc41
20
Vigesimal
115b775
36
Base36
14jfb5
md5
b13f239529e7ff12d620ff1f9ad0ddbe
sha1
729e94bd5755edd1457b86f0ff17a48dc95bf62f
sha256
44c60fa406dcace22496218ac68d5b5f8d78f3cf95f6e218e6ea426362c257e0
sha512
d84c32664d69a149f5315fae24f933082be6af506f41236e082f206849b1415281428fc93a77310490223fcfa64da18211bac51c079c7de389436bf7065764c5
ripemd-160
eef107b9b31584e2ba7c45a89f9748084d4c1e60
Diameter
136181890
Circumference
427828025.17597
Area
1.4565607265858E+16
Volume
1.3223812843082E+24
Surface area
5.8262429063432E+16
Circumference
427828025.17597
Perimeter
272363780
Area
4636376790993025
Diagonal
96295137.8938
Surface area
27818260745958150
Volume
3.1569527707478E+23
Space diagonal
117936976.27538
Perimeter
204272835
Area
2.0076100412583E+15
Altitude
58968488.137689
Surface area
2.0076100412583E+15
Volume
3.7205045201357E+22
Height
32098379.297933