68638907 is an odd 8-digits composite number following 68638906
and preceding 68638908 . In scientific notation, it is written as 6.8638907 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 67698576 positive integers (up to 68638907) that are relatively prime to 68638907.
68638907 has 4 divisors, whose sum is 69579240
The reverse of 68638907 is 70983686
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-eight million six hundred thirty-eight thousand nine hundred seven
Scientific notation
6.8638907 × 10^7
Engineering notation
6.8638907 × 10^6
Prime Factorization
73 × 940259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68638907
Product of the distinct prime numbers
The prime factorization of 68638907 is 73 × 940259.
Since it has a total of 2 prime factors.
6 , 5 , 45 , 58 , 5 , 556 , 7656 , 4679 , 39378 , 25029 , 875156 , 28561 , 3400266 , 6249032 , 21235693 , 36939086 , 66011227 , 130176728 , 8967436287 , 8462030471
n×2
137277814
n×3
205916721
n×4
274555628
n×5
343194535
n÷2
34319453.5
n÷3
22879635.666667
n÷3
17159726.75
n÷5
13727781.4
n2
4711299554154649
n3
3.2337845194676E+23
n4
2.2196343488978E+31
n5
1.52353275648E+39
2 √n
8284.860107449
3 √n
409.43985971538
4 √n
91.021206910527
5 √n
36.924453124641
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
-68638906
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 68638907 can be divided by 4 positive divisors.
The sum of these divisors (counting 68638907) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000101110101100010111011
3
Ternary
11210011012212202
4
Quaternary
10011311202323
5
Quinary
120032421112
6
Senary
10451100415
8
Octal
405654273
10
Decimal
68638907
12
Duodecimal
1aba170b
16
Hexadecimal
41758bb
20
Vigesimal
118jh57
36
Base36
14v64b
md5
1f94b625352cb0802ca957d9f485e772
sha1
173035f08874e8cfa422a2cf227162dfa0e3a989
sha256
cf241dc0b9525d36fd880e89f48605fe865243fa841530ea2ae4ec1b7b1e58f4
sha512
fbd65a26765f56525922ee1d148275a535a7296d407b07bfea54dc3e21aade7d66d16ba2df872e62cf173a634022bab50ab180fc7568d0d036821d3b6de2c74e
ripemd-160
4bf635698f6fb20eb2a63744037b7958ce7476b6
Diameter
137277814
Circumference
431270971.96327
Area
1.4800984068193E+16
Volume
1.3545644919536E+24
Surface area
5.9203936272772E+16
Circumference
431270971.96327
Perimeter
274555628
Area
4711299554154649
Diagonal
97070073.185866
Surface area
28267797324927894
Volume
3.2337845194676E+23
Space diagonal
118886074.3
Perimeter
205916721
Area
2.0400525493681E+15
Altitude
59443037.149998
Surface area
2.0400525493681E+15
Volume
3.8110516043527E+22
Height
32356691.061955