68638245 is an odd 8-digits composite number following 68638244
and preceding 68638246 . In scientific notation, it is written as 6.8638245 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 33791040 positive integers (up to 68638245) that are relatively prime to 68638245.
68638245 has 8 divisors, whose sum is 92925888
The reverse of 68638245 is 54283686
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-eight million six hundred thirty-eight thousand two hundred forty-five
Scientific notation
6.8638245 × 10^7
Engineering notation
6.8638245 × 10^6
Prime Factorization
65 × 3 × 351991
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68638245
Product of the distinct prime numbers
The prime factorization of 68638245 is 65 × 3 × 351991.
Since it has a total of 3 prime factors.
5 , 5 , 97 , 30 , 619 , 898 , 7017 , 8691 , 73230 , 81233 , 198571 , 459006 , 5519101 , 4240371 , 3149376 , 33720850 , 304618707 , 21791444 , 6477352336 , 5282891260
n×2
137276490
n×3
205914735
n×4
274552980
n×5
343191225
n÷2
34319122.5
n÷3
22879415
n÷3
17159561.25
n÷5
13727649
n2
4711208676680025
n3
3.2336909539609E+23
n4
2.2195487195225E+31
n5
1.5234592880002E+39
2 √n
8284.8201549581
3 √n
409.43854340626
4 √n
91.020987442227
5 √n
36.924381899491
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
-68638244
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 68638245 can be divided by 8 positive divisors.
The sum of these divisors (counting 68638245) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101110101011000100101
3
Ternary
11210011011222020
4
Quaternary
10011311120211
5
Quinary
120032410440
6
Senary
10451053353
8
Octal
405653045
10
Decimal
68638245
12
Duodecimal
1aba1259
16
Hexadecimal
4175625
20
Vigesimal
118jfc5
36
Base36
14v5lx
md5
3e6e14f2158148b2584230d3d5f4fa6f
sha1
92fef916b93a0a51f53c58ff36f68a48da79a3e8
sha256
fecf64cd79258153d947f74cf90176f4e0564c72290f0368ffa39153a334fa95
sha512
f0291a951801f6a212fb15cb4d083dd02cd2e94a5ccc61460c2eb994e7582369cc63bb1e0876b357f9557d12ef2238fd2559b9accd588ffa3693fbf9f716c424
ripemd-160
177f6afc6e35b62536b663e4609f48e46ef92c2e
Diameter
137276490
Circumference
431266812.49459
Area
1.4800698568186E+16
Volume
1.3545252993258E+24
Surface area
5.9202794272746E+16
Circumference
431266812.49459
Perimeter
274552980
Area
4711208676680025
Diagonal
97069136.976487
Surface area
28267252060080150
Volume
3.2336909539609E+23
Space diagonal
118884927.68236
Perimeter
205914735
Area
2.0400131982673E+15
Altitude
59442463.84118
Surface area
2.0400131982673E+15
Volume
3.8109413363456E+22
Height
32356378.992162