68505890 is an even 8-digits composite number following 68505889
and preceding 68505891 . In scientific notation, it is written as 6.8505890 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 27402352 positive integers (up to 68505890) that are relatively prime to 68505890.
68505890 has 8 divisors, whose sum is 123310620
The reverse of 68505890 is 09850586
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-eight million five hundred five thousand eight hundred ninety
Scientific notation
6.8505890 × 10^7
Engineering notation
6.8505890 × 10^6
Prime Factorization
2 × 5 × 6850589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68505890
Product of the distinct prime numbers
The prime factorization of 68505890 is 2 × 5 × 6850589.
Since it has a total of 3 prime factors.
9 , 2 , 5 , 5 , 430 , 220 , 7660 , 3857 , 13744 , 22624 , 975733 , 225823 , 4619110 , 9707995 , 40764386 , 53771226 , 924863572 , 650744468 , 2465312884 , 5749329079
n×2
137011780
n×3
205517670
n×4
274023560
n×5
342529450
n÷2
34252945
n÷3
22835296.666667
n÷3
17126472.5
n÷5
13701178
n2
4693056964692100
n3
3.2150204418693E+23
n4
2.2024783673845E+31
n5
1.5088274076342E+39
2 √n
8276.8284988877
3 √n
409.17520087245
4 √n
90.977076776998
5 √n
36.910130659622
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
-68505889
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 68505890 can be divided by 8 positive divisors.
The sum of these divisors (counting 68505890) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101010101000100100010
3
Ternary
11202220110102012
4
Quaternary
10011111010202
5
Quinary
120014142030
6
Senary
10444152522
8
Octal
405250442
10
Decimal
68505890
12
Duodecimal
1ab38742
16
Hexadecimal
4155122
20
Vigesimal
11834ea
36
Base36
14sbhe
md5
cb988375d19436ed8a88f378ec1b5d1c
sha1
58f3a596ac6ea4fa2aa3e663a343f21120dc8b82
sha256
5a7f50b98bacd4d5b54af2c8024f20279ea667402b25ca61f54ea6945d9a4702
sha512
adcca106fa98f0c3724539eeff94111e1a01d4bf047348fe77d7fb5a9d3f76068fb5fb6bdbd5a11abe628823acf9318ab81d03aed6818d1f738d816f3bc6618b
ripemd-160
7a8b384f87174824799709b1834f4f092fff6f4e
Diameter
137011780
Circumference
430435201.50326
Area
1.4743673283155E+16
Volume
1.346704613509E+24
Surface area
5.897469313262E+16
Circumference
430435201.50326
Perimeter
274023560
Area
4693056964692100
Diagonal
96881958.740439
Surface area
28158341788152600
Volume
3.2150204418693E+23
Space diagonal
118655682.09772
Perimeter
205517670
Area
2.0321532764154E+15
Altitude
59327841.048862
Surface area
2.0321532764154E+15
Volume
3.7889379268319E+22
Height
32293986.246813