68385890 is an even 8-digits composite number following 68385889
and preceding 68385891 . In scientific notation, it is written as 6.8385890 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 27354352 positive integers (up to 68385890) that are relatively prime to 68385890.
68385890 has 8 divisors, whose sum is 123094620
The reverse of 68385890 is 09858386
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-eight million three hundred eighty-five thousand eight hundred ninety
Scientific notation
6.8385890 × 10^7
Engineering notation
6.8385890 × 10^6
Prime Factorization
2 × 5 × 6838589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68385890
Product of the distinct prime numbers
The prime factorization of 68385890 is 2 × 5 × 6838589.
Since it has a total of 3 prime factors.
2 , 10 , 68 , 21 , 420 , 998 , 6323 , 4568 , 55337 , 67772 , 824946 , 527182 , 5456741 , 4107780 , 58757687 , 43378719 , 130195865 , 351845587 , 6860147084 , 9268182794
n×2
136771780
n×3
205157670
n×4
273543560
n×5
341929450
n÷2
34192945
n÷3
22795296.666667
n÷3
17096472.5
n÷5
13677178
n2
4676629951092100
n3
3.1981550140609E+23
n4
2.1870867699452E+31
n5
1.4956587526993E+39
2 √n
8269.5761680995
3 √n
408.93614735602
4 √n
90.937210030326
5 √n
36.897190685083
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
-68385889
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 68385890 can be divided by 8 positive divisors.
The sum of these divisors (counting 68385890) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000100110111110001100010
3
Ternary
11202200100210202
4
Quaternary
10010313301202
5
Quinary
120001322030
6
Senary
10441425202
8
Octal
404676142
10
Decimal
68385890
12
Duodecimal
1aa9b202
16
Hexadecimal
4137c62
20
Vigesimal
11784ea
36
Base36
14pqw2
md5
8201e337fe7ab69d6e1fe4519ab9ceb0
sha1
7f9db4f6fc2b49ca0b8c7bb4027c3ca8f04e8877
sha256
e4e9fa62db834ed787d580b68197ebe4a5f58de853094a8cf213b99bea8da92f
sha512
2f2105f2128bb92dea1f70c80d99a0d26671295b400a58933f1a900068cde9bdbca5d8ec70a14f895cf5eb3c074e1d09ba5c0a563c2785d89e367b0bc25e9d57
ripemd-160
a97f58b5d1dec7b8236b2bcd37ad33cccb489bbd
Diameter
136771780
Circumference
429681219.2664
Area
1.4692066297909E+16
Volume
1.3396400396287E+24
Surface area
5.8768265191636E+16
Circumference
429681219.2664
Perimeter
273543560
Area
4676629951092100
Diagonal
96712253.112955
Surface area
28059779706552600
Volume
3.1981550140609E+23
Space diagonal
118447836.00082
Perimeter
205157670
Area
2.0250401708725E+15
Altitude
59223918.000408
Surface area
2.0250401708725E+15
Volume
3.769061829547E+22
Height
32237417.704318