640052021 is an odd 9-digits composite number following 640052020
and preceding 640052022 . In scientific notation, it is written as 6.40052021 × 10^8.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 548616012 positive integers (up to 640052021) that are relatively prime to 640052021.
640052021 has 4 divisors, whose sum is 731488032
The reverse of 640052021 is 120250046
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 20
Digital Root 2
Name
six hundred forty million fifty-two thousand twenty-one
Scientific notation
6.40052021 × 10^8
Engineering notation
6.40052021 × 10^6
Prime Factorization
7 × 91436003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
640052021
Product of the distinct prime numbers
The prime factorization of 640052021 is 7 × 91436003.
Since it has a total of 2 prime factors.
4 , 7 , 22 , 87 , 862 , 435 , 2727 , 9358 , 52136 , 56027 , 357803 , 247800 , 1145153 , 8026077 , 75084806 , 77649622 , 439220122 , 30851128 , 7151593583 , 8271362105
n×2
1280104042
n×3
1920156063
n×4
2560208084
n×5
3200260105
n÷2
320026010.5
n÷3
213350673.66667
n÷3
160013005.25
n÷5
128010404.2
n2
409666589586184441
n3
2.6220792860081E+26
n4
1.6782671462318E+35
n5
1.0741782787235E+44
2 √n
25299.249415744
3 √n
861.79722451495
4 √n
159.05737774697
5 √n
57.708934339436
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
-640052020
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 640052021 can be divided by 4 positive divisors.
The sum of these divisors (counting 640052021) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110001001100110101100110101
3
Ternary
1122121101000022102
4
Quaternary
212021212230311
5
Quinary
2302323131041
6
Senary
143302311445
8
Octal
4611465465
10
Decimal
640052021
12
Duodecimal
15a428585
16
Hexadecimal
26266b35
20
Vigesimal
a006a11
36
Base36
al2jat
md5
c13d7ad6893459aeff6e643e30058ace
sha1
d5923efe3761a2b7f5b818e84cb37a5a4c187bd4
sha256
53405f9bf879a425bb9fc1750ee26182e7dc9553191966992792a6596e25a08f
sha512
9614a9efd663ad2e38f474a1c34b9d8e00692db575b79507544c5a15cb2ea06cee5313e57e388fc15d731d0fd8d2d97179e266a9198ce49320455f294423f8d2
ripemd-160
e115741034e69a2bc22ed9f55997f8dac7325694
Diameter
1280104042
Circumference
4021565454.1778
Area
1.2870055482651E+18
Volume
1.0983340029404E+27
Surface area
5.1480221930606E+18
Circumference
4021565454.1778
Perimeter
2560208084
Area
409666589586184441
Diagonal
905170248.72251
Surface area
2457999537517106646
Volume
2.6220792860081E+26
Space diagonal
1108602619.8591
Perimeter
1920156063
Area
1.7739083683168E+17
Altitude
554301309.92957
Surface area
1.7739083683168E+17
Volume
3.0901500732419E+25
Height
301723416.24084