68638 is an even 5-digits composite number following 68637
and preceding 68639 . In scientific notation, it is written as 6.8638 × 10^4.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 34318 positive integers (up to 68638) that are relatively prime to 68638.
68638 has 4 divisors, whose sum is 102960
The reverse of 68638 is 83686
Previous prime number is 2
Is Prime? no
Number parity even
Number length 5
Sum of Digits 31
Digital Root 4
Name
sixty-eight thousand six hundred thirty-eight
Scientific notation
6.8638 × 10^4
Engineering notation
6.8638 × 10^3
Prime Factorization
2 × 34319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68638
Product of the distinct prime numbers
The prime factorization of 68638 is 2 × 34319.
Since it has a total of 2 prime factors.
1 , 8 , 74 , 85 , 331 , 376 , 459 , 4960 , 98034 , 51220 , 230887 , 443898 , 6784619 , 909516 , 43588184 , 31574941 , 637681164 , 172888730 , 1650698627 , 213663894
n×2
137276
n×3
205914
n×4
274552
n×5
343190
n÷2
34319
n÷3
22879.333333333
n÷3
17159.5
n÷5
13727.6
n2
4711175044
n3
323365632670072
n4
2.2195170295208E+19
n5
1.5234320987225E+24
2 √n
261.9885493681
3 √n
40.943805625044
4 √n
16.186060341173
5 √n
9.2749787672133
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
-68637
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 68638 can be divided by 4 positive divisors.
The sum of these divisors (counting 68638) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000110000011110
3
Ternary
10111011011
4
Quaternary
100300132
5
Quinary
4144023
6
Senary
1245434
8
Octal
206036
10
Decimal
68638
12
Duodecimal
3387a
16
Hexadecimal
10c1e
20
Vigesimal
8bbi
36
Base36
1gym
md5
002adf8f5f06972a827c24d742250a54
sha1
33ad13d825c4576cbfc4f564a5b0453ee6eecf44
sha256
ff19174f2266feb19933ed645b21cf4253841f2e43ffd6098a114cf75833e961
sha512
6f2e2c05e1d131220401215288b19a2f3dc7eecc674041d3ee439aec76f70b40b829b82a7f10588b4c4d0e42016d1feb3df587b1e0d1821773bb8c717881b12c
ripemd-160
699461184dd8f5d26163edf00087adfedf7f56e3
Diameter
137276
Circumference
431265.27311419
Area
14800592908.006
Volume
1.354510794693E+15
Surface area
59202371632.024
Circumference
431265.27311419
Perimeter
274552
Area
4711175044
Diagonal
97068.790494165
Surface area
28267050264
Volume
323365632670072
Space diagonal
118884.50332991
Perimeter
205914
Area
2039998634.8896
Altitude
59442.251664956
Surface area
2039998634.8896
Volume
38109005277281
Height
32356.263498055