638266988 is an even 9-digits composite number following 638266987
and preceding 638266989 . In scientific notation, it is written as 6.38266988 × 10^8.
The sum of its digits is 56. It has a total of 4 prime factors and 12 positive divisors.
There are 318816432 positive integers (up to 638266988) that are relatively prime to 638266988.
638266988 has 12 divisors, whose sum is 1118076960
The reverse of 638266988 is 889662836
Previous prime number is 1013
Is Prime? no Number parity even Number length 9 Sum of Digits 56 Digital Root 2
Name
six hundred thirty-eight million two hundred sixty-six thousand nine hundred eighty-eight
Scientific notation
6.38266988 × 10^8
Engineering notation
6.38266988 × 10^6
Prime Factorization
2 × 2 × 1013 × 157519
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319133494 Product of the distinct prime numbers
The prime factorization of 638266988 is 2 × 2 × 1013 × 157519.
Since it has a total of 4 prime factors.
7 , 5 , 64 , 92 , 564 , 47 , 9458 , 6433 , 36169 , 16333 , 403482 , 167716 , 5938361 , 9585563 , 48051733 , 15498543 , 842148048 , 585462060 , 4657573710 , 68181819
n×2
1276533976
n×3
1914800964
n×4
2553067952
n×5
3191334940
n÷2
319133494
n÷3
212755662.66667
n÷3
159566747
n÷5
127653397.6
n2
407384747970592144
n3
2.6002023604433E+26
n4
1.6596233287906E+35
n5
1.0592827832817E+44
2 √n25263.946405896
3 √n860.99532678538
4 √n158.94636329874
5 √n57.676709627252
1 , 2 , 4 , 1013 , 2026 , 4052 , 157519 , 315038 , 630076 , 159566747 , 319133494 , 638266988
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
-638266987 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 638266988 can be divided by 12 positive divisors.
The sum of these divisors (counting 638266988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000010110010111001101100
3
Ternary
1122111000022201002
4
Quaternary
212002302321230
5
Quinary
2301344020423
6
Senary
143200135432
8
Octal
4602627154
10
Decimal
638266988
12
Duodecimal
159907578
16
Hexadecimal
260b2e6c
20
Vigesimal
9j93798
36
Base36
ak09yk
md5
f09019af6826870c253fa803775b89cc
sha1
9cde0200f598feabf5f3f6ff296e79d752fcb1d5
sha256
632b5eedb54d7ca148217b4f4314f0adbd78240708d1d2595232aabc040d1846
sha512
c61ffb959719262c2ef27bf98e8c430fbba336c50c6cebaa8827fbf83edf7ce92d970e7491ec6ad61d5a1a7008cc2611812582bfff3db98e09de0085a0fb76e1
ripemd-160
ac62cf6a00998f0aa2c4f76b78e46572a4b113b9
Diameter
1276533976
Circumference
4010349761.0594
Area
1.2798369314089E+18
Volume
1.0891702177887E+27
Surface area
5.1193477256358E+18
Circumference
4010349761.0594
Perimeter
2553067952
Area
407384747970592144
Diagonal
902645830.84463
Surface area
2444308487823552864
Volume
2.6002023604433E+26
Space diagonal
1105510852.01
Perimeter
1914800964
Area
1.7640277042843E+17
Altitude
552755426.00498
Surface area
1.7640277042843E+17
Volume
3.0643678692112E+25
Height
300881943.61488