68742731 is an odd 8-digits composite number following 68742730
and preceding 68742732 . In scientific notation, it is written as 6.8742731 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 66283168 positive integers (up to 68742731) that are relatively prime to 68742731.
68742731 has 8 divisors, whose sum is 71208720
The reverse of 68742731 is 13724786
Previous prime number is 1187
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-eight million seven hundred forty-two thousand seven hundred thirty-one
Scientific notation
6.8742731 × 10^7
Engineering notation
6.8742731 × 10^6
Prime Factorization
29 × 1187 × 1997
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68742731
Product of the distinct prime numbers
The prime factorization of 68742731 is 29 × 1187 × 1997.
Since it has a total of 3 prime factors.
1 , 4 , 90 , 38 , 799 , 360 , 9561 , 72 , 54601 , 64052 , 830410 , 758998 , 5091929 , 7802466 , 72512315 , 93671688 , 265418577 , 788141923 , 9609700584 , 8190308553
n×2
137485462
n×3
206228193
n×4
274970924
n×5
343713655
n÷2
34371365.5
n÷3
22914243.666667
n÷3
17185682.75
n÷5
13748546.2
n2
4725563065338361
n3
3.2484811062409E+23
n4
2.233094628449E+31
n5
1.5350902334102E+39
2 √n
8291.1236271087
3 √n
409.64619686098
4 √n
91.055607334797
5 √n
36.935616842613
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
-68742730
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 68742731 can be divided by 8 positive divisors.
The sum of these divisors (counting 68742731) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000110001110111001001011
3
Ternary
11210100111022002
4
Quaternary
10012032321023
5
Quinary
120044231411
6
Senary
10453221215
8
Octal
406167113
10
Decimal
68742731
12
Duodecimal
1b03180b
16
Hexadecimal
418ee4b
20
Vigesimal
119cggb
36
Base36
14xe8b
md5
ac647737299cda2925c42f6468c8380d
sha1
a12e5d3c5704452254a1c7d4ac4732df6775fa72
sha256
690a0a239344cac532993529a8ecfc76dfa52d66c61ba037480dccbc5b20d845
sha512
2cd83ab0a087c8c4d0978b46f95b59aaa93351061094ee94ae83b56d7886c3d3bd0cadf18f844b2adf5aee4dccbc856e3dd8fea420e889e31c54cbebbc43643e
ripemd-160
fd412ab705726168311e7ea288ee6c909c4ee423
Diameter
137485462
Circumference
431923317.3946
Area
1.4845794210142E+16
Volume
1.3607205838256E+24
Surface area
5.9383176840569E+16
Circumference
431923317.3946
Perimeter
274970924
Area
4725563065338361
Diagonal
97216902.494765
Surface area
28353378392030166
Volume
3.2484811062409E+23
Space diagonal
119065902.74304
Perimeter
206228193
Area
2.0462288308842E+15
Altitude
59532951.37152
Surface area
2.0462288308842E+15
Volume
3.8283716979655E+22
Height
32405634.164922