639888904 is an even 9-digits composite number following 639888903
and preceding 639888905 . In scientific notation, it is written as 6.39888904 × 10^8.
The sum of its digits is 55. It has a total of 4 prime factors and 8 positive divisors.
There are 319944448 positive integers (up to 639888904) that are relatively prime to 639888904.
639888904 has 8 divisors, whose sum is 1199791710
The reverse of 639888904 is 409888936
Previous prime number is 2
Is Prime? no Number parity even Number length 9 Sum of Digits 55 Digital Root 1
Name
six hundred thirty-nine million eight hundred eighty-eight thousand nine hundred four
Scientific notation
6.39888904 × 10^8
Engineering notation
6.39888904 × 10^6
Prime Factorization
2 × 2 × 2 × 79986113
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
159972226 Product of the distinct prime numbers
The prime factorization of 639888904 is 2 × 2 × 2 × 79986113.
Since it has a total of 4 prime factors.
4 , 5 , 97 , 25 , 960 , 770 , 9587 , 9905 , 75907 , 10391 , 776211 , 689338 , 2635637 , 220771 , 89872208 , 26468829 , 898150271 , 18796580 , 7005334893 , 2389222686
n×2
1279777808
n×3
1919666712
n×4
2559555616
n×5
3199444520
n÷2
319944452
n÷3
213296301.33333
n÷3
159972226
n÷5
127977780.8
n2
409457809462321216
n3
2.6200750893109E+26
n4
1.6765569772968E+35
n5
1.072810206696E+44
2 √n25296.025458558
3 √n861.7240087363
4 √n159.04724285117
5 √n57.705992619803
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-639888903 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 639888904 can be divided by 8 positive divisors.
The sum of these divisors (counting 639888904) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110001000111110111000001000
3
Ternary
1122121001201120001
4
Quaternary
212020332320020
5
Quinary
2302302421104
6
Senary
143255012344
8
Octal
4610767010
10
Decimal
639888904
12
Duodecimal
15a36a0b4
16
Hexadecimal
2623ee08
20
Vigesimal
9jj6254
36
Base36
akz1fs
md5
7c8ce4a6772027d47eb744b1cc24d505
sha1
7b593fd1488abdbb86db63a089dea9a8a9b3bdd1
sha256
ec966e15d65ecacddc25a543ca3f7695a3069d90daf0d2065ed7ba3614bced3c
sha512
4f237c2882a5dc9f01363651c2de5ba07a26800201a58b7d868b7ddd18f804f5a9b3f42fd957a0290cb77f5e3f64cf7285891042793484baa38087275c6d9149
ripemd-160
7c30c31e0ffa6924687f09770968a086fab88032
Diameter
1279777808
Circumference
4020540559.84
Area
1.2863496461618E+18
Volume
1.097494486991E+27
Surface area
5.1453985846472E+18
Circumference
4020540559.84
Perimeter
2559555616
Area
409457809462321216
Diagonal
904939566.44886
Surface area
2456746856773927296
Volume
2.6200750893109E+26
Space diagonal
1108320092.9276
Perimeter
1919666712
Area
1.7730043238615E+17
Altitude
554160046.46378
Surface area
1.7730043238615E+17
Volume
3.0877881047828E+25
Height
301646522.14962