68739905 is an odd 8-digits composite number following 68739904
and preceding 68739906 . In scientific notation, it is written as 6.8739905 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 12 positive divisors.
There are 50761152 positive integers (up to 68739905) that are relatively prime to 68739905.
68739905 has 12 divisors, whose sum is 89322300
The reverse of 68739905 is 50993786
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-eight million seven hundred thirty-nine thousand nine hundred five
Scientific notation
6.8739905 × 10^7
Engineering notation
6.8739905 × 10^6
Prime Factorization
5 × 13 × 13 × 81349
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5287685
Product of the distinct prime numbers
The prime factorization of 68739905 is 5 × 13 × 13 × 81349.
Since it has a total of 4 prime factors.
1 , 1 , 56 , 65 , 233 , 757 , 356 , 5313 , 15769 , 14992 , 483630 , 658241 , 6545933 , 6379551 , 57331669 , 23522017 , 313336557 , 107931459 , 3642722034 , 1259170074
n×2
137479810
n×3
206219715
n×4
274959620
n×5
343699525
n÷2
34369952.5
n÷3
22913301.666667
n÷3
17184976.25
n÷5
13747981
n2
4725174539409025
n3
3.248080489474E+23
n4
2.2327274427879E+31
n5
1.5347747230814E+39
2 √n
8290.9532021354
3 √n
409.64058329283
4 √n
91.054671500893
5 √n
36.935313154447
1 , 5 , 13 , 65 , 169 , 845 , 81349 , 406745 , 1057537 , 5287685 , 13747981 , 68739905
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68739904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68739905 can be divided by 12 positive divisors.
The sum of these divisors (counting 68739905) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100000110001110001101000001
3
Ternary
11210100100102102
4
Quaternary
10012032031001
5
Quinary
120044134110
6
Senary
10453200145
8
Octal
406161501
10
Decimal
68739905
12
Duodecimal
1b030055
16
Hexadecimal
418e341
20
Vigesimal
119c9f5
36
Base36
14xc1t
md5
9358c31d7fd4c6371c483eaa4b474996
sha1
a28d8216093ad4d7cdcfdecbbb9f4c5a3cc56be8
sha256
d65d48033e04be1aac3189513531df1ab471670d6c0811007adfc419a242e461
sha512
94762ea4c1da59025d3ac5b00380cc8f14c157753166fa02555f5b1fe7eef49da34a4a7247fdc1e92118b4714e82e503d0870640b1fc4e95a6a480bc72d8d4ff
ripemd-160
079dd0a763437c671928bae909fa1894fa598e74
Diameter
137479810
Circumference
431905561.11292
Area
1.4844573619937E+16
Volume
1.3605527738666E+24
Surface area
5.9378294479748E+16
Circumference
431905561.11292
Perimeter
274959620
Area
4725174539409025
Diagonal
97212905.927238
Surface area
28351047236454150
Volume
3.248080489474E+23
Space diagonal
119061007.96746
Perimeter
206219715
Area
2.0460605942218E+15
Altitude
59530503.983729
Surface area
2.0460605942218E+15
Volume
3.8278995665779E+22
Height
32404301.975746