68641 is an odd 5-digits composite number following 68640
and preceding 68642 . In scientific notation, it is written as 6.8641 × 10^4.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 67732 positive integers (up to 68641) that are relatively prime to 68641.
68641 has 4 divisors, whose sum is 69552
The reverse of 68641 is 14686
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 25
Digital Root 7
Name
sixty-eight thousand six hundred forty-one
Scientific notation
6.8641 × 10^4
Engineering notation
6.8641 × 10^3
Prime Factorization
83 × 827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68641
Product of the distinct prime numbers
The prime factorization of 68641 is 83 × 827.
Since it has a total of 2 prime factors.
2 , 8 , 58 , 36 , 462 , 892 , 7894 , 9797 , 56022 , 64779 , 459663 , 532493 , 5322048 , 9586472 , 80962248 , 25112805 , 840476559 , 796239137 , 8262273887 , 4100066389
n×2
137282
n×3
205923
n×4
274564
n×5
343205
n÷2
34320.5
n÷3
22880.333333333
n÷3
17160.25
n÷5
13728.2
n2
4711586881
n3
323408035098721
n4
2.2199050937211E+19
n5
1.5237650553811E+24
2 √n
261.99427474661
3 √n
40.944402134399
4 √n
16.186237201605
5 √n
9.2750598431475
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
-68640
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 68641 can be divided by 4 positive divisors.
The sum of these divisors (counting 68641) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000110000100001
3
Ternary
10111011021
4
Quaternary
100300201
5
Quinary
4144031
6
Senary
1245441
8
Octal
206041
10
Decimal
68641
12
Duodecimal
33881
16
Hexadecimal
10c21
20
Vigesimal
8bc1
36
Base36
1gyp
md5
a44613cfff202b2d9f74d1d5523c5e98
sha1
9c93696f239e960f4966fa791d6a3d451c058200
sha256
9a503880b907e7f550817351a7838df381340222a0aefe6b5247040221bbb49e
sha512
be4cb6f9e12ec63c34f34c0f4a8db9e2010c869bf95b4579a8e50e0b6f5b819f7b0d16d6dac8529c6a005b90757528f121142a7def723fa5097af86bf9340e10
ripemd-160
7062496823a38ef3765d609a612d266e3ae441b2
Diameter
137282
Circumference
431284.12267011
Area
14801886732.1
Volume
1.3546884095707E+15
Surface area
59207546928.399
Circumference
431284.12267011
Perimeter
274564
Area
4711586881
Diagonal
97073.033134852
Surface area
28269521286
Volume
323408035098721
Space diagonal
118889.69948234
Perimeter
205923
Area
2040176965.5417
Altitude
59444.849741168
Surface area
2040176965.5417
Volume
38114002451420
Height
32357.677711617