638006906 is an even 9-digits composite number following 638006905
and preceding 638006907 . In scientific notation, it is written as 6.38006906 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 299965440 positive integers (up to 638006906) that are relatively prime to 638006906.
638006906 has 16 divisors, whose sum is 1014226920
The reverse of 638006906 is 609600836
Previous prime number is 1181
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
six hundred thirty-eight million six thousand nine hundred six
Scientific notation
6.38006906 × 10^8
Engineering notation
6.38006906 × 10^6
Prime Factorization
2 × 17 × 1181 × 15889
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
638006906
Product of the distinct prime numbers
The prime factorization of 638006906 is 2 × 17 × 1181 × 15889.
Since it has a total of 4 prime factors.
9 , 1 , 68 , 96 , 516 , 666 , 2008 , 4531 , 93729 , 46796 , 134306 , 811363 , 3638732 , 2488525 , 48824172 , 84248055 , 869983363 , 485947785 , 8338132074 , 2435210832
n×2
1276013812
n×3
1914020718
n×4
2552027624
n×5
3190034530
n÷2
319003453
n÷3
212668968.66667
n÷3
159501726.5
n÷5
127601381.2
n2
407052812103692836
n3
2.5970250522888E+26
n4
1.6569199184152E+35
n5
1.0571263506379E+44
2 √n
25258.798585839
3 √n
860.87836433687
4 √n
158.93016889766
5 √n
57.67200842231
1 , 2 , 17 , 34 , 1181 , 2362 , 15889 , 20077 , 31778 , 40154 , 270113 , 540226 , 18764909 , 37529818 , 319003453 , 638006906
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-638006905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638006906 can be divided by 16 positive divisors.
The sum of these divisors (counting 638006906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000001110011011001111010
3
Ternary
1122110112002221102
4
Quaternary
212001303121322
5
Quinary
2301312210111
6
Senary
143150411402
8
Octal
4601633172
10
Decimal
638006906
12
Duodecimal
159800b62
16
Hexadecimal
2607367a
20
Vigesimal
9j7ah56
36
Base36
ajupa2
md5
d3f5ed3b46e36859906e39ba7698b584
sha1
fc9f13a8cd3e5abfdbeaf9a7551fa75d1c79bab4
sha256
3da9a29cae9428915ad41cada3801b3476aed9ae7ee9909fbc3a079ad20ea2e6
sha512
ae421c5ae953a7a84c0801eeb410b99547ac13fa450276a1459f961b6960ffc6eba03a0aed450af5eac172a5d95da29bfbecd2c2053b7be1946073118283e1aa
ripemd-160
0dde00c7e650014cf6613a750a27435e97be69e5
Diameter
1276013812
Circumference
4008715617.6583
Area
1.278794124128E+18
Volume
1.0878393100612E+27
Surface area
5.1151764965121E+18
Circumference
4008715617.6583
Perimeter
2552027624
Area
407052812103692836
Diagonal
902278019.3529
Surface area
2442316872622157016
Volume
2.5970250522888E+26
Space diagonal
1105060376.7718
Perimeter
1914020718
Area
1.7625903798185E+17
Altitude
552530188.38591
Surface area
1.7625903798185E+17
Volume
3.0606233756412E+25
Height
300759339.7843