640143885 is an odd 9-digits composite number following 640143884
and preceding 640143886 . In scientific notation, it is written as 6.40143885 × 10^8.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 341410064 positive integers (up to 640143885) that are relatively prime to 640143885.
640143885 has 4 divisors, whose sum is 682820160
The reverse of 640143885 is 588341046
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
six hundred forty million one hundred forty-three thousand eight hundred eighty-five
Scientific notation
6.40143885 × 10^8
Engineering notation
6.40143885 × 10^6
Prime Factorization
15 × 42676259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
640143885
Product of the distinct prime numbers
The prime factorization of 640143885 is 15 × 42676259.
Since it has a total of 2 prime factors.
7 , 7 , 89 , 93 , 523 , 995 , 9215 , 1811 , 67538 , 59711 , 358449 , 149902 , 2606546 , 530075 , 70830315 , 60646118 , 585329694 , 173194869 , 7722943619 , 2685002431
n×2
1280287770
n×3
1920431655
n×4
2560575540
n×5
3200719425
n÷2
320071942.5
n÷3
213381295
n÷3
160035971.25
n÷5
128028777
n2
409784193502893225
n3
2.6232084564053E+26
n4
1.6792308524482E+35
n5
1.074949361698E+44
2 √n
25301.064898537
3 √n
861.83845259766
4 √n
159.06308465052
5 √n
57.710590788925
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-640143884
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 640143885 can be divided by 4 positive divisors.
The sum of these divisors (counting 640143885) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110001001111101001000001101
3
Ternary
1122121112200022210
4
Quaternary
212021331020031
5
Quinary
2302334101020
6
Senary
143304301033
8
Octal
4611751015
10
Decimal
640143885
12
Duodecimal
15a471779
16
Hexadecimal
2627d20d
20
Vigesimal
a00hje5
36
Base36
al4i6l
md5
e5bfc4f6a585c88b2439882e0160a6df
sha1
90fe7aa87677fea9573551c7d7a3a931b3423e78
sha256
0886c3b2cd98ef4a8f9bba0b28ef5b4fd39b21ad4805611bd89a8d3cea2edf17
sha512
aaa834093839ec6bd50ff01d72c04f850e6b94a37c948c4dfe24b222c6001657640926c1f6ee9c1eea9dac8fbeecb19437afbed51563eefd1d6c35abde68bda7
ripemd-160
f0f897cdbc4050a485ec07003ea770e3f2b08bc9
Diameter
1280287770
Circumference
4022142652.7129
Area
1.2873750118659E+18
Volume
1.0988069887304E+27
Surface area
5.1495000474636E+18
Circumference
4022142652.7129
Perimeter
2560575540
Area
409784193502893225
Diagonal
905300164.0372
Surface area
2458705161017359350
Volume
2.6232084564053E+26
Space diagonal
1108761732.9745
Perimeter
1920431655
Area
1.7744176082141E+17
Altitude
554380866.48726
Surface area
1.7744176082141E+17
Volume
3.0914808133169E+25
Height
301766721.34573