68691908 is an even 8-digits composite number following 68691907
and preceding 68691909 . In scientific notation, it is written as 6.8691908 × 10^7.
The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors.
There are 32889600 positive integers (up to 68691908) that are relatively prime to 68691908.
68691908 has 24 divisors, whose sum is 125389824
The reverse of 68691908 is 80919686
Previous prime number is 97
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-eight million six hundred ninety-one thousand nine hundred eight
Scientific notation
6.8691908 × 10^7
Engineering notation
6.8691908 × 10^6
Prime Factorization
2 × 2 × 31 × 97 × 5711
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
34345954
Product of the distinct prime numbers
The prime factorization of 68691908 is 2 × 2 × 31 × 97 × 5711.
Since it has a total of 5 prime factors.
4 , 5 , 68 , 44 , 966 , 65 , 6956 , 6747 , 58614 , 25158 , 847435 , 863654 , 232130 , 4778413 , 75397492 , 42622772 , 141402642 , 687750453 , 1824402438 , 9285627250
n×2
137383816
n×3
206075724
n×4
274767632
n×5
343459540
n÷2
34345954
n÷3
22897302.666667
n÷3
17172977
n÷5
13738381.6
n2
4718578224680464
n3
3.2412814130055E+23
n4
2.2264980462429E+31
n5
1.5294239895469E+39
2 √n
8288.0581561666
3 √n
409.54521851643
4 √n
91.038772817776
5 √n
36.930153765399
1 , 2 , 4 , 31 , 62 , 97 , 124 , 194 , 388 , 3007 , 5711 , 6014 , 11422 , 12028 , 22844 , 177041 , 354082 , 553967 , 708164 , 1107934 , 2215868 , 17172977 , 34345954 , 68691908
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68691907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68691908 can be divided by 24 positive divisors.
The sum of these divisors (counting 68691908) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100000110000010011111000100
3
Ternary
11210020220120202
4
Quaternary
10012002133010
5
Quinary
120041120113
6
Senary
10452150032
8
Octal
406023704
10
Decimal
68691908
12
Duodecimal
1b008318
16
Hexadecimal
41827c4
20
Vigesimal
11969f8
36
Base36
14wb0k
md5
9f97203fbf5be7f087ae26b0130d5a47
sha1
56310aeded9269b4231cbc421ab12a8766a59715
sha256
37c17afbd747990b1f2ab8a1f92ccf0e7c0bf207586cbbe20c5aa1c492b50c84
sha512
627c59e1eed2e11782f3701ce8b44cef6fd29224a7b34f23e68c03c6700a404ce0750ed69a80b509564e7fc8df0a8cc0d9e902705245e22d86693754e9d0161b
ripemd-160
d8bf26f9ae3f5d5841913159a55eadd16727010e
Diameter
137383816
Circumference
431603987.06773
Area
1.4823850686045E+16
Volume
1.3577047833754E+24
Surface area
5.929540274418E+16
Circumference
431603987.06773
Perimeter
274767632
Area
4718578224680464
Diagonal
97145027.918885
Surface area
28311469348082784
Volume
3.2412814130055E+23
Space diagonal
118977874.72485
Perimeter
206075724
Area
2.0432043061587E+15
Altitude
59488937.362424
Surface area
2.0432043061587E+15
Volume
3.8198867781169E+22
Height
32381675.972962