68680655 is an odd 8-digits composite number following 68680654
and preceding 68680656 . In scientific notation, it is written as 6.8680655 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 52907040 positive integers (up to 68680655) that are relatively prime to 68680655.
68680655 has 16 divisors, whose sum is 85499904
The reverse of 68680655 is 55608686
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-eight million six hundred eighty thousand six hundred fifty-five
Scientific notation
6.8680655 × 10^7
Engineering notation
6.8680655 × 10^6
Prime Factorization
5 × 31 × 223 × 1987
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68680655
Product of the distinct prime numbers
The prime factorization of 68680655 is 5 × 31 × 223 × 1987.
Since it has a total of 4 prime factors.
7 , 1 , 77 , 25 , 851 , 376 , 8686 , 5758 , 48459 , 72009 , 162878 , 904901 , 8989958 , 1330666 , 99784111 , 138277 , 73006200 , 292155138 , 7184794570 , 9149740437
n×2
137361310
n×3
206041965
n×4
274722620
n×5
343403275
n÷2
34340327.5
n÷3
22893551.666667
n÷3
17170163.75
n÷5
13736131
n2
4717032371229025
n3
3.2396887291221E+23
n4
2.2250394391223E+31
n5
1.5281716607975E+39
2 √n
8287.3792600556
3 √n
409.52285361126
4 √n
91.035044131673
5 √n
36.928943718199
1 , 5 , 31 , 155 , 223 , 1115 , 1987 , 6913 , 9935 , 34565 , 61597 , 307985 , 443101 , 2215505 , 13736131 , 68680655
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68680654
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68680655 can be divided by 16 positive divisors.
The sum of these divisors (counting 68680655) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000101111111101111001111
3
Ternary
11210020100010222
4
Quaternary
10011333233033
5
Quinary
120040240110
6
Senary
10452021555
8
Octal
405775717
10
Decimal
68680655
12
Duodecimal
1b0018bb
16
Hexadecimal
417fbcf
20
Vigesimal
11951cf
36
Base36
14w2bz
md5
a26a6d1dd7330a779db5fb3794eed6f9
sha1
dd160d77d1838574e1fdcceb4b25ce62de28bdd2
sha256
a9ad8e9036be356958c19ff7ed05003b1252d1f58f5ada52b8316cbce53321f1
sha512
245148eb3a019221bbc87a80ee80bd233d7d7d42076971f25ba4ef51aab9119533b411f3c6ae260ca1b49fb99d41a3742e3ef3bb8acf4c4e04db3f44abf40ed1
ripemd-160
850475a97d10cc2953d040f03a58a968fedc051d
Diameter
137361310
Circumference
431533282.38347
Area
1.4818994244198E+16
Volume
1.3570376415104E+24
Surface area
5.9275976976793E+16
Circumference
431533282.38347
Perimeter
274722620
Area
4717032371229025
Diagonal
97129113.773668
Surface area
28302194227374150
Volume
3.2396887291221E+23
Space diagonal
118958383.95711
Perimeter
206041965
Area
2.0425349319789E+15
Altitude
59479191.978555
Surface area
2.0425349319789E+15
Volume
3.8180097821598E+22
Height
32376371.257889