68742021 is an odd 8-digits composite number following 68742020
and preceding 68742022 . In scientific notation, it is written as 6.8742021 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 45051152 positive integers (up to 68742021) that are relatively prime to 68742021.
68742021 has 8 divisors, whose sum is 93209760
The reverse of 68742021 is 12024786
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
sixty-eight million seven hundred forty-two thousand twenty-one
Scientific notation
6.8742021 × 10^7
Engineering notation
6.8742021 × 10^6
Prime Factorization
3 × 59 × 388373
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68742021
Product of the distinct prime numbers
The prime factorization of 68742021 is 3 × 59 × 388373.
Since it has a total of 3 prime factors.
4 , 3 , 62 , 47 , 177 , 320 , 1119 , 9989 , 59172 , 33512 , 904255 , 717499 , 5345341 , 7928290 , 25950780 , 86098973 , 140606477 , 459396652 , 5698679152 , 9867558569
n×2
137484042
n×3
206226063
n×4
274968084
n×5
343710105
n÷2
34371010.5
n÷3
22914007
n÷3
17185505.25
n÷5
13748404.2
n2
4725465451164441
n3
3.2483804527872E+23
n4
2.2330023730149E+31
n5
1.5350109601884E+39
2 √n
8291.0808101236
3 √n
409.64478653102
4 √n
91.055372220005
5 √n
36.935540545393
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
-68742020
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 68742021 can be divided by 8 positive divisors.
The sum of these divisors (counting 68742021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000110001110101110000101
3
Ternary
11210100110022210
4
Quaternary
10012032232011
5
Quinary
120044221041
6
Senary
10453214033
8
Octal
406165605
10
Decimal
68742021
12
Duodecimal
1b031319
16
Hexadecimal
418eb85
20
Vigesimal
119cf11
36
Base36
14xdol
md5
98b67689e881727e2544f999740f2fa8
sha1
8e595187cd1222278167a981ca7d03c5a3cb7080
sha256
01572b53fa07dfc95c026e467d1d206c8b829a4778254b697e6bdcc929318345
sha512
37ef9bc3c04714e79028ca99ac773d40e3bcbc1e8e09619a90140c074ad90a24b6b94fbf1b23fb6c725082836d86e276afda384c85a335cdcc28fb35500215c5
ripemd-160
1b26c9afe5590d742cd9f6eb3fe261764c3dc190
Diameter
137484042
Circumference
431918856.33303
Area
1.4845487546171E+16
Volume
1.3606784222055E+24
Surface area
5.9381950184682E+16
Circumference
431918856.33303
Perimeter
274968084
Area
4725465451164441
Diagonal
97215898.403136
Surface area
28352792706986646
Volume
3.2483804527872E+23
Space diagonal
119064672.98697
Perimeter
206226063
Area
2.046186562707E+15
Altitude
59532336.493483
Surface area
2.046186562707E+15
Volume
3.8282530767328E+22
Height
32405299.467712