68705890 is an even 8-digits composite number following 68705889
and preceding 68705891 . In scientific notation, it is written as 6.8705890 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 24983920 positive integers (up to 68705890) that are relatively prime to 68705890.
68705890 has 16 divisors, whose sum is 134913600
The reverse of 68705890 is 09850786
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-eight million seven hundred five thousand eight hundred ninety
Scientific notation
6.8705890 × 10^7
Engineering notation
6.8705890 × 10^6
Prime Factorization
2 × 11 × 5 × 624599
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68705890
Product of the distinct prime numbers
The prime factorization of 68705890 is 2 × 11 × 5 × 624599.
Since it has a total of 4 prime factors.
8 , 5 , 19 , 43 , 628 , 172 , 3973 , 8844 , 30337 , 46158 , 45759 , 901442 , 958686 , 5665796 , 16672854 , 3255183 , 337678148 , 293762138 , 6899009614 , 5852704941
n×2
137411780
n×3
206117670
n×4
274823560
n×5
343529450
n÷2
34352945
n÷3
22901963.333333
n÷3
17176472.5
n÷5
13741178
n2
4720499320692100
n3
3.2432610707255E+23
n4
2.2283113836655E+31
n5
1.5309811681187E+39
2 √n
8288.9016160164
3 √n
409.57300380166
4 √n
91.043405120945
5 √n
36.931657043991
1 , 2 , 5 , 10 , 11 , 22 , 55 , 110 , 624599 , 1249198 , 3122995 , 6245990 , 6870589 , 13741178 , 34352945 , 68705890
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
-68705889
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 68705890 can be divided by 16 positive divisors.
The sum of these divisors (counting 68705890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000110000101111001100010
3
Ternary
11210021121202121
4
Quaternary
10012011321202
5
Quinary
120042042030
6
Senary
10452334454
8
Octal
406057142
10
Decimal
68705890
12
Duodecimal
1b01442a
16
Hexadecimal
4185e62
20
Vigesimal
11984ea
36
Base36
14wlsy
md5
b76574670d239482760d471da516e03e
sha1
8f106568f64081bcea9d1d11a6dfee604e198e93
sha256
0c598a74bdc90400656680d422fe4e7ddb2d88f051d0df6129d657b67d45f1d5
sha512
9bd4f656de6b3c48bfe4bfdab203709efc99fb6d44bb819b69975234e14c20ce8c465e7051520b8dfc0f8f99ada7ab39abf1f22ff8224d25ac59372e8b0227e1
ripemd-160
64bc87c698df75ac7530a8bf6d9946df8c655761
Diameter
137411780
Circumference
431691838.5647
Area
1.4829885987162E+16
Volume
1.358534020462E+24
Surface area
5.9319543948648E+16
Circumference
431691838.5647
Perimeter
274823560
Area
4720499320692100
Diagonal
97164801.452914
Surface area
28322995924152600
Volume
3.2432610707255E+23
Space diagonal
119002092.25924
Perimeter
206117670
Area
2.0440361651333E+15
Altitude
59501046.129619
Surface area
2.0440361651333E+15
Volume
3.8222198271139E+22
Height
32388267.150971