638954672 is an even 9-digits composite number following 638954671
and preceding 638954673 . In scientific notation, it is written as 6.38954672 × 10^8.
The sum of its digits is 50. It has a total of 6 prime factors and 20 positive divisors.
There are 319075968 positive integers (up to 638954672) that are relatively prime to 638954672.
638954672 has 20 divisors, whose sum is 1239530040
The reverse of 638954672 is 276459836
Previous prime number is 809
Is Prime? no
Number parity even
Number length 9
Sum of Digits 50
Digital Root 5
Name
six hundred thirty-eight million nine hundred fifty-four thousand six hundred seventy-two
Scientific notation
6.38954672 × 10^8
Engineering notation
6.38954672 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 809 × 49363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
79869334
Product of the distinct prime numbers
The prime factorization of 638954672 is 2 × 2 × 2 × 2 × 809 × 49363.
Since it has a total of 6 prime factors.
5 , 2 , 13 , 44 , 477 , 398 , 4623 , 3794 , 1503 , 7207 , 542302 , 524294 , 114581 , 627268 , 82158258 , 49573581 , 631972815 , 211534287 , 2137897115 , 2685460169
n×2
1277909344
n×3
1916864016
n×4
2555818688
n×5
3194773360
n÷2
319477336
n÷3
212984890.66667
n÷3
159738668
n÷5
127790934.4
n2
408263072870627584
n3
2.6086159781576E+26
n4
1.6667873666977E+35
n5
1.0650015751821E+44
2 √n
25277.552729645
3 √n
861.30443473117
4 √n
158.98915915761
5 √n
57.689132725571
1 , 2 , 4 , 8 , 16 , 809 , 1618 , 3236 , 6472 , 12944 , 49363 , 98726 , 197452 , 394904 , 789808 , 39934667 , 79869334 , 159738668 , 319477336 , 638954672
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
-638954671
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 638954672 can be divided by 20 positive divisors.
The sum of these divisors (counting 638954672) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110000101011010110010110000
3
Ternary
1122112022021000212
4
Quaternary
212011122302300
5
Quinary
2302033022142
6
Senary
143223003252
8
Octal
4605326260
10
Decimal
638954672
12
Duodecimal
159b99528
16
Hexadecimal
2615acb0
20
Vigesimal
9jd96dc
36
Base36
akf0kw
md5
557d6a0f28d8b3276e4cea1cb166c5d0
sha1
3cc7391825c8758f411a033e37d0553deadaa9b8
sha256
a0fef4639d6051b12d87aedff76970fb64ef1f6006675dbac45186f8a9d9bfbf
sha512
7b326988d9eaa3d23d985d5ad70224e39676cc2c53ef9dd8eec1f64032f69455b0b8a6e9e1a5fb18e4e01a34831c0efd66970ac147d5ac38cee9953f0c3432af
ripemd-160
22118b4a3cc6c55f9ca4d4a045595dc432c79986
Diameter
1277909344
Circumference
4014670607.0642
Area
1.2825962704624E+18
Volume
1.0926945057356E+27
Surface area
5.1303850818494E+18
Circumference
4014670607.0642
Perimeter
2555818688
Area
408263072870627584
Diagonal
903618362.88405
Surface area
2449578437223765504
Volume
2.6086159781576E+26
Space diagonal
1106701955.6375
Perimeter
1916864016
Area
1.7678309626653E+17
Altitude
553350977.81875
Surface area
1.7678309626653E+17
Volume
3.0742834127781E+25
Height
301206120.96135