638620 is an even 6-digits composite number following 638619
and preceding 638621 . In scientific notation, it is written as 6.38620 × 10^5.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 248256 positive integers (up to 638620) that are relatively prime to 638620.
638620 has 12 divisors, whose sum is 1124928
The reverse of 638620 is 026836
Previous prime number is 185
Is Prime? no
Number parity even
Number length 6
Sum of Digits 25
Digital Root 7
Name
six hundred thirty-eight thousand six hundred twenty
Scientific notation
6.38620 × 10^5
Engineering notation
6.38620 × 10^3
Prime Factorization
2 × 2 × 185 × 863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
319310
Product of the distinct prime numbers
The prime factorization of 638620 is 2 × 2 × 185 × 863.
Since it has a total of 4 prime factors.
2 , 4 , 21 , 36 , 754 , 665 , 3986 , 5096 , 84357 , 87017 , 739894 , 736645 , 7614080 , 8835803 , 59358331 , 61624334 , 712687342 , 919981505 , 8897311668 , 2583809978
n×2
1277240
n×3
1915860
n×4
2554480
n×5
3193100
n÷2
319310
n÷3
212873.33333333
n÷3
159655
n÷5
127724
n2
407835504400
n3
260451909819928000
n4
1.663297986492E+23
n5
1.0622153601335E+29
2 √n
799.13703455665
3 √n
86.115403031157
4 √n
28.269011913342
5 √n
14.489336650287
1 , 2 , 4 , 185 , 370 , 740 , 863 , 1726 , 3452 , 159655 , 319310 , 638620
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-638619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638620 can be divided by 12 positive divisors.
The sum of these divisors (counting 638620) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10011011111010011100
3
Ternary
1012110000121
4
Quaternary
2123322130
5
Quinary
130413440
6
Senary
21404324
8
Octal
2337234
10
Decimal
638620
12
Duodecimal
2696a4
16
Hexadecimal
9be9c
20
Vigesimal
3jgb0
36
Base36
dorg
md5
7f32d959248fbf726aed8897ca690f52
sha1
c9d016f07f3e2754b892f058f4f16d09d29fc050
sha256
0083b7b9d4db0fe875ad724a9169f8ba854e786a8b9872bb3cc642c831d07566
sha512
11abf9afbedee48b1b1f88cdf9de4ea01049f71e54564c04a4100000797cb83051aec145e7e0fe52c11478421cb3cc1378f4892cf617bfb6f25694f6681d5c88
ripemd-160
e5b614111a89f6169ed487b031029b874a98393b
Diameter
1277240
Circumference
4012567.800871
Area
1281253024496.1
Volume
1.0909784086716E+18
Surface area
5125012097984.5
Circumference
4012567.800871
Perimeter
2554480
Area
407835504400
Diagonal
903145.06520271
Surface area
2447013026400
Volume
260451909819928000
Space diagonal
1106122.2867296
Perimeter
1915860
Area
176597953687.82
Altitude
553061.14336482
Surface area
176597953687.82
Volume
3.0694551934443E+16
Height
301048.35506757