64491385 is an odd 8-digits composite number following 64491384
and preceding 64491386 . In scientific notation, it is written as 6.4491385 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 44222640 positive integers (up to 64491385) that are relatively prime to 64491385.
64491385 has 8 divisors, whose sum is 88445376
The reverse of 64491385 is 58319446
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-four million four hundred ninety-one thousand three hundred eighty-five
Scientific notation
6.4491385 × 10^7
Engineering notation
6.4491385 × 10^6
Prime Factorization
7 × 5 × 1842611
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64491385
Product of the distinct prime numbers
The prime factorization of 64491385 is 7 × 5 × 1842611.
Since it has a total of 3 prime factors.
5 , 4 , 83 , 42 , 448 , 740 , 9783 , 7101 , 97963 , 75106 , 886359 , 854239 , 9637195 , 519032 , 86183215 , 91381541 , 842263789 , 475735152 , 6361131330 , 1671266844
n×2
128982770
n×3
193474155
n×4
257965540
n×5
322456925
n÷2
32245692.5
n÷3
21497128.333333
n÷3
16122846.25
n÷5
12898277
n2
4159138739218225
n3
2.6822861769934E+23
n4
1.7298435052066E+31
n5
1.1156000348403E+39
2 √n
8030.6528377212
3 √n
401.02110986852
4 √n
89.613909845075
5 √n
36.467025503021
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
-64491384
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 64491385 can be divided by 8 positive divisors.
The sum of these divisors (counting 64491385) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110000000111101111001
3
Ternary
11111100111112211
4
Quaternary
3312000331321
5
Quinary
113002211020
6
Senary
10222135121
8
Octal
366007571
10
Decimal
64491385
12
Duodecimal
197214a1
16
Hexadecimal
3d80f79
20
Vigesimal
1031895
36
Base36
12e9vd
md5
b9c1599479e0ec00405e255f09a4df5f
sha1
f79d02ebee688ba8f8905fec2981cc83b9d9ab32
sha256
850905cc054338f1da5b6e6448c833c4c318414e0863f35e32e38e21467bd8f0
sha512
41eaf693ba68c3db98704f87dcc2c6d1d81f17f4d45f96cce49570b2b8ceff2aedc247f0065574a239585867b1bea0138957af36c331791dbcec276daccb8854
ripemd-160
efcc776e9b9861bad6f46cb2f003532454d62528
Diameter
128982770
Circumference
405211322.67166
Area
1.3066319708389E+16
Volume
1.1235534064624E+24
Surface area
5.2265278833555E+16
Circumference
405211322.67166
Perimeter
257965540
Area
4159138739218225
Diagonal
91204591.323225
Surface area
24954832435309350
Volume
2.6822861769934E+23
Space diagonal
111702355.47049
Perimeter
193474155
Area
1.8009599030135E+15
Altitude
55851177.735243
Surface area
1.8009599030135E+15
Volume
3.1611045747249E+22
Height
30401530.441075