640804917 is an odd 9-digits composite number following 640804916
and preceding 640804918 . In scientific notation, it is written as 6.40804917 × 10^8.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 423210512 positive integers (up to 640804917) that are relatively prime to 640804917.
640804917 has 8 divisors, whose sum is 862392096
The reverse of 640804917 is 719408046
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
six hundred forty million eight hundred four thousand nine hundred seventeen
Scientific notation
6.40804917 × 10^8
Engineering notation
6.40804917 × 10^6
Prime Factorization
3 × 107 × 1996277
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
640804917
Product of the distinct prime numbers
The prime factorization of 640804917 is 3 × 107 × 1996277.
Since it has a total of 3 prime factors.
9 , 1 , 59 , 41 , 303 , 79 , 1853 , 1567 , 14501 , 38645 , 67009 , 967212 , 7302805 , 4996075 , 27064874 , 27989413 , 772169628 , 534973253 , 1555072853 , 8251318708
n×2
1281609834
n×3
1922414751
n×4
2563219668
n×5
3204024585
n÷2
320402458.5
n÷3
213601639
n÷3
160201229.25
n÷5
128160983.4
n2
410630941651376889
n3
2.6313432648254E+26
n4
1.686177702415E+35
n5
1.0805109626433E+44
2 √n
25314.124851553
3 √n
862.13500405757
4 √n
159.10413210081
5 √n
57.722504610352
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
-640804916
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 640804917 can be divided by 8 positive divisors.
The sum of these divisors (counting 640804917) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110001100011110100000110101
3
Ternary
1122122210021002110
4
Quaternary
212030132200311
5
Quinary
2303021224132
6
Senary
143330401233
8
Octal
4614364065
10
Decimal
640804917
12
Duodecimal
15a730219
16
Hexadecimal
2631e835
20
Vigesimal
a050c5h
36
Base36
alio8l
md5
679b93541dec7ceebbf2c18aef715795
sha1
b6aebb0d80aa0b9684e9faf1d68ca366a8bdf3c1
sha256
0edf85f2e11712bbb11f0dc35db530fa37d1a4b99c25d6a7c8265bf3e8ac87d2
sha512
03a2c4b6955f934149aeea9d9ff9dbc1665be8fa17d7588d6291535bf311b3b02fc9c2d789d982e7cf4fe5bc60fad53b47e9822dcb43ff392c1bc26f7e5e72fd
ripemd-160
867d1dd4bb90269e6aab727151a02785e8d36705
Diameter
1281609834
Circumference
4026296039.2628
Area
1.2900351496286E+18
Volume
1.1022144893131E+27
Surface area
5.1601405985145E+18
Circumference
4026296039.2628
Perimeter
2563219668
Area
410630941651376889
Diagonal
906235004.45677
Surface area
2463785649908261334
Volume
2.6313432648254E+26
Space diagonal
1109906673.984
Perimeter
1922414751
Area
1.7780841352501E+17
Altitude
554953336.99198
Surface area
1.7780841352501E+17
Volume
3.1010677769793E+25
Height
302078334.81892