64691390 is an even 8-digits composite number following 64691389
and preceding 64691391 . In scientific notation, it is written as 6.4691390 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 24514560 positive integers (up to 64691390) that are relatively prime to 64691390.
64691390 has 16 divisors, whose sum is 122573520
The reverse of 64691390 is 09319646
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-four million six hundred ninety-one thousand three hundred ninety
Scientific notation
6.4691390 × 10^7
Engineering notation
6.4691390 × 10^6
Prime Factorization
2 × 5 × 19 × 340481
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64691390
Product of the distinct prime numbers
The prime factorization of 64691390 is 2 × 5 × 19 × 340481.
Since it has a total of 4 prime factors.
8 , 10 , 55 , 91 , 168 , 22 , 6425 , 6136 , 53312 , 77917 , 525768 , 781302 , 4034033 , 2432542 , 74179642 , 31349239 , 365621574 , 720275516 , 3003635286 , 6295369242
n×2
129382780
n×3
194074170
n×4
258765560
n×5
323456950
n÷2
32345695
n÷3
21563796.666667
n÷3
16172847.5
n÷5
12938278
n2
4184975940132100
n3
2.707319106837E+23
n4
1.7514023619485E+31
n5
1.1330065324373E+39
2 √n
8043.0957970175
3 √n
401.43523989016
4 √n
89.683308352321
5 √n
36.489616292443
1 , 2 , 5 , 10 , 19 , 38 , 95 , 190 , 340481 , 680962 , 1702405 , 3404810 , 6469139 , 12938278 , 32345695 , 64691390
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
-64691389
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 64691390 can be divided by 16 positive divisors.
The sum of these divisors (counting 64691390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110110110001110010111110
3
Ternary
11111201122220102
4
Quaternary
3312301302332
5
Quinary
113030111030
6
Senary
10230321102
8
Octal
366616276
10
Decimal
64691390
12
Duodecimal
197b9192
16
Hexadecimal
3db1cbe
20
Vigesimal
104689a
36
Base36
12ik72
md5
dd32a438fde34ab1bdb2dcc9f6f083f8
sha1
b525b84fb67a2540e43b8034ed1dfb090ffd0760
sha256
4a5ed783503dfe07f584bc8c2067f0a90b89d5e6e1cc8fc903dda8cac852aa97
sha512
33ad9b79c2fa7360d30f441f73340508e5d73f5897d436fc0ff90fc416dc0afd33354ce0673ac34d7ca90e8cb10a358a2e27ce38d3348b3e59c4877dde984ea7
ripemd-160
02cbffdf6c8d188f398c8e5df2fca044077d019d
Diameter
129382780
Circumference
406467991.14902
Area
1.3147489668969E+16
Volume
1.134039175595E+24
Surface area
5.2589958675876E+16
Circumference
406467991.14902
Perimeter
258765560
Area
4184975940132100
Diagonal
91487441.106767
Surface area
25109855640792600
Volume
2.707319106837E+23
Space diagonal
112048774.29225
Perimeter
194074170
Area
1.8121477391905E+15
Altitude
56024387.146127
Surface area
1.8121477391905E+15
Volume
3.1906061654673E+22
Height
30495813.702256