68978021 is an odd 8-digits composite number following 68978020
and preceding 68978022 . In scientific notation, it is written as 6.8978021 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 58121568 positive integers (up to 68978021) that are relatively prime to 68978021.
68978021 has 8 divisors, whose sum is 80168640
The reverse of 68978021 is 12087986
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-eight million nine hundred seventy-eight thousand twenty-one
Scientific notation
6.8978021 × 10^7
Engineering notation
6.8978021 × 10^6
Prime Factorization
7 × 59 × 167017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68978021
Product of the distinct prime numbers
The prime factorization of 68978021 is 7 × 59 × 167017.
Since it has a total of 3 prime factors.
5 , 7 , 59 , 28 , 126 , 4 , 5989 , 720 , 31881 , 75271 , 655813 , 4264 , 9420060 , 251838 , 11294152 , 94956290 , 835140404 , 383254937 , 4398484366 , 8181610819
n×2
137956042
n×3
206934063
n×4
275912084
n×5
344890105
n÷2
34489010.5
n÷3
22992673.666667
n÷3
17244505.25
n÷5
13795604.2
n2
4757967381076441
n3
3.2819517392921E+23
n4
2.2638253599387E+31
n5
1.5615419321819E+39
2 √n
8305.3007772145
3 √n
410.11303843347
4 √n
91.133422942489
5 √n
36.960866660946
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
-68978020
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 68978021 can be divided by 8 positive divisors.
The sum of these divisors (counting 68978021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000111001000010101100101
3
Ternary
11210210110001112
4
Quaternary
10013020111211
5
Quinary
120124244041
6
Senary
10502234405
8
Octal
407102545
10
Decimal
68978021
12
Duodecimal
1b125a05
16
Hexadecimal
41c8565
20
Vigesimal
11b2511
36
Base36
152fs5
md5
200012335bb8b764a7e4b9704164cb53
sha1
bace50084836aada169d6e74e86da272d29c5a03
sha256
ae994bc6ce628de1d48a7b732a41dbed9178aa919f9be90118078745a65ca82b
sha512
51026044293a4a6680eb11fb659d81a04955bbb15a27a8e308bce1c66311911e9f1e93741165ece15810494e51f62c0babd4400d4a55572d1cae7427ca9d5611
ripemd-160
87b623cf97a415d8172610fccb67f2f85ccd4348
Diameter
137956042
Circumference
433401688.06552
Area
1.494759537041E+16
Volume
1.3747407298128E+24
Surface area
5.9790381481638E+16
Circumference
433401688.06552
Perimeter
275912084
Area
4757967381076441
Diagonal
97549652.803856
Surface area
28547804286458646
Volume
3.2819517392921E+23
Space diagonal
119473436.97755
Perimeter
206934063
Area
2.060260311195E+15
Altitude
59736718.488776
Surface area
2.060260311195E+15
Volume
3.8678172173007E+22
Height
32516550.934619