68621 is an odd 5-digits composite number following 68620
and preceding 68622 . In scientific notation, it is written as 6.8621 × 10^4.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 58812 positive integers (up to 68621) that are relatively prime to 68621.
68621 has 4 divisors, whose sum is 78432
The reverse of 68621 is 12686
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 23
Digital Root 5
Name
sixty-eight thousand six hundred twenty-one
Scientific notation
6.8621 × 10^4
Engineering notation
6.8621 × 10^3
Prime Factorization
7 × 9803
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68621
Product of the distinct prime numbers
The prime factorization of 68621 is 7 × 9803.
Since it has a total of 2 prime factors.
8 , 10 , 94 , 78 , 752 , 851 , 7639 , 499 , 35390 , 18926 , 872486 , 377718 , 2555804 , 4378570 , 6874773 , 86111658 , 921728111 , 429193543 , 909776238 , 6829307976
n×2
137242
n×3
205863
n×4
274484
n×5
343105
n÷2
34310.5
n÷3
22873.666666667
n÷3
17155.25
n÷5
13724.2
n2
4708841641
n3
323125422247061
n4
2.2173189600016E+19
n5
1.5215464435427E+24
2 √n
261.95610319288
3 √n
40.940425077008
4 √n
16.185058022537
5 √n
9.2745192833639
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
-68620
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 68621 can be divided by 4 positive divisors.
The sum of these divisors (counting 68621) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000110000001101
3
Ternary
10111010112
4
Quaternary
100300031
5
Quinary
4143441
6
Senary
1245405
8
Octal
206015
10
Decimal
68621
12
Duodecimal
33865
16
Hexadecimal
10c0d
20
Vigesimal
8bb1
36
Base36
1gy5
md5
2dacda7e6b45c917c4d1c30e4c30e017
sha1
990547864737cf2a0d52126ef65f70275c7cddca
sha256
abdde0688e2312c85602055823d3fd42dfcf7091f46e1531741594610f15f3ae
sha512
c71aed0c2b2b3ac0293c8df008fd5a1355c670be5aafa817ad9cabd30f147c18ebff4bca6888522f701f3a1989d25f15b53c480b3b7d17b2d4a42c92bae392be
ripemd-160
c41c8d76ae19c25d391ceeb6ce2c7c2ed3d998d0
Diameter
137242
Circumference
431158.45896397
Area
14793262306.283
Volume
1.353504603626E+15
Surface area
59173049225.133
Circumference
431158.45896397
Perimeter
274484
Area
4708841641
Diagonal
97044.748863604
Surface area
28253049846
Volume
323125422247061
Space diagonal
118855.05846618
Perimeter
205863
Area
2038988241.752
Altitude
59427.529233092
Surface area
2038988241.752
Volume
38080696207444
Height
32348.249621201