638994910 is an even 9-digits composite number following 638994909
and preceding 638994911 . In scientific notation, it is written as 6.38994910 × 10^8.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 254724448 positive integers (up to 638994910) that are relatively prime to 638994910.
638994910 has 16 divisors, whose sum is 1154121696
The reverse of 638994910 is 019499836
Previous prime number is 293
Is Prime? no
Number parity even
Number length 9
Sum of Digits 49
Digital Root 4
Name
six hundred thirty-eight million nine hundred ninety-four thousand nine hundred ten
Scientific notation
6.38994910 × 10^8
Engineering notation
6.38994910 × 10^6
Prime Factorization
2 × 5 × 293 × 218087
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
638994910
Product of the distinct prime numbers
The prime factorization of 638994910 is 2 × 5 × 293 × 218087.
Since it has a total of 4 prime factors.
6 , 6 , 79 , 97 , 469 , 428 , 971 , 1487 , 95088 , 82598 , 113083 , 535930 , 4421155 , 1319289 , 15610877 , 3463235 , 88873518 , 618276109 , 2278207364 , 3806548863
n×2
1277989820
n×3
1916984730
n×4
2555979640
n×5
3194974550
n÷2
319497455
n÷3
212998303.33333
n÷3
159748727.5
n÷5
127798982
n2
408314495005908100
n3
2.60910883988E+26
n4
1.6672072683193E+35
n5
1.065336958371E+44
2 √n
25278.348640685
3 √n
861.32251449065
4 √n
158.99166217348
5 √n
57.689859298818
1 , 2 , 5 , 10 , 293 , 586 , 1465 , 2930 , 218087 , 436174 , 1090435 , 2180870 , 63899491 , 127798982 , 319497455 , 638994910
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
-638994909
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 638994910 can be divided by 16 positive divisors.
The sum of these divisors (counting 638994910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000101100100100111011110
3
Ternary
1122112101022020011
4
Quaternary
212011210213132
5
Quinary
2302040314120
6
Senary
143223513434
8
Octal
4605444736
10
Decimal
638994910
12
Duodecimal
159bb887a
16
Hexadecimal
261649de
20
Vigesimal
9jde75a
36
Base36
akfvmm
md5
e6fffb539ca45624c89b5b08367a28cb
sha1
6e6f06dacbedc674a558afaa92c77babd20fb928
sha256
012149722d67408fccae4fd9ed1278ea6fe953c9ba43925f8b5395378e74258c
sha512
a7c90e90b800abeab46774d7990055a0db9b82884f3601700e057d7e334c97c35d8654a90159e40917edd45f940b82d213bc72a57edc6a69aba31d2e61c5e703
ripemd-160
ed68a7da620cf396b42bffbfbe117c5687985402
Diameter
1277989820
Circumference
4014923429.8745
Area
1.2827578178648E+18
Volume
1.0929009551711E+27
Surface area
5.1310312714591E+18
Circumference
4014923429.8745
Perimeter
2555979640
Area
408314495005908100
Diagonal
903675268.00938
Surface area
2449886970035448600
Volume
2.60910883988E+26
Space diagonal
1106771649.8979
Perimeter
1916984730
Area
1.7680536270427E+17
Altitude
553385824.94895
Surface area
1.7680536270427E+17
Volume
3.0748642558881E+25
Height
301225089.33646