638973904 is an even 9-digits composite number following 638973903
and preceding 638973905 . In scientific notation, it is written as 6.38973904 × 10^8.
The sum of its digits is 49. It has a total of 6 prime factors and 20 positive divisors.
There are 318159360 positive integers (up to 638973904) that are relatively prime to 638973904.
638973904 has 20 divisors, whose sum is 1243156420
The reverse of 638973904 is 409379836
Previous prime number is 241
Is Prime? no
Number parity even
Number length 9
Sum of Digits 49
Digital Root 4
Name
six hundred thirty-eight million nine hundred seventy-three thousand nine hundred four
Scientific notation
6.38973904 × 10^8
Engineering notation
6.38973904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 241 × 165709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
79871738
Product of the distinct prime numbers
The prime factorization of 638973904 is 2 × 2 × 2 × 2 × 241 × 165709.
Since it has a total of 6 prime factors.
3 , 8 , 91 , 5 , 345 , 329 , 8871 , 1134 , 48275 , 84302 , 612710 , 489703 , 2482731 , 6001005 , 774684 , 30257272 , 915296974 , 125637566 , 6917514368 , 6589012766
n×2
1277947808
n×3
1916921712
n×4
2555895616
n×5
3194869520
n÷2
319486952
n÷3
212991301.33333
n÷3
159743476
n÷5
127794780.8
n2
408287649993001216
n3
2.6088515367101E+26
n4
1.6669880513681E+35
n5
1.065161863104E+44
2 √n
25277.933143356
3 √n
861.31307615829
4 √n
158.99035550421
5 √n
57.689480000297
1 , 2 , 4 , 8 , 16 , 241 , 482 , 964 , 1928 , 3856 , 165709 , 331418 , 662836 , 1325672 , 2651344 , 39935869 , 79871738 , 159743476 , 319486952 , 638973904
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-638973903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638973904 can be divided by 20 positive divisors.
The sum of these divisors (counting 638973904) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110000101011111011111010000
3
Ternary
1122112100020102011
4
Quaternary
212011133133100
5
Quinary
2302034131104
6
Senary
143223232304
8
Octal
4605373720
10
Decimal
638973904
12
Duodecimal
159ba8694
16
Hexadecimal
2615f7d0
20
Vigesimal
9jdbef4
36
Base36
akfff4
md5
15177e11c2044c33e94f0c3d8c36ec53
sha1
86689b3c37fdd9c8d20c323bdfc59e24da0d4016
sha256
dbf6bad8b368b2d9465371bb13b52b5da3b11d83a6f00dee97a19a57e886a246
sha512
baeb41e3959e1452674b9c34f4092b1f737db852d03b319597bbc225cb283e99d30ecd2c40169da33c139a96dbf6ba274d69c19ddbd860a465461fdfa53f9731
ripemd-160
9e4c1d5c940b103390974692a1fd888faaee85a1
Diameter
1277947808
Circumference
4014791445.284
Area
1.2826734817695E+18
Volume
1.0927931762713E+27
Surface area
5.1306939270778E+18
Circumference
4014791445.284
Perimeter
2555895616
Area
408287649993001216
Diagonal
903645561.03928
Surface area
2449725899958007296
Volume
2.6088515367101E+26
Space diagonal
1106735266.4386
Perimeter
1916921712
Area
1.7679373847269E+17
Altitude
553367633.21932
Surface area
1.7679373847269E+17
Volume
3.0745610211945E+25
Height
301215187.01309