638994005 is an odd 9-digits composite number following 638994004
and preceding 638994006 . In scientific notation, it is written as 6.38994005 × 10^8.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 470065728 positive integers (up to 638994005) that are relatively prime to 638994005.
638994005 has 8 divisors, whose sum is 651309120
The reverse of 638994005 is 500499836
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
six hundred thirty-eight million nine hundred ninety-four thousand five
Scientific notation
6.38994005 × 10^8
Engineering notation
6.38994005 × 10^6
Prime Factorization
65 × 263 × 37379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
638994005
Product of the distinct prime numbers
The prime factorization of 638994005 is 65 × 263 × 37379.
Since it has a total of 3 prime factors.
1 , 5 , 32 , 34 , 202 , 79 , 9301 , 9834 , 79220 , 29668 , 863637 , 268240 , 9703998 , 3629072 , 77791000 , 92025230 , 718365426 , 623541959 , 3735984247 , 3567848813
n×2
1277988010
n×3
1916982015
n×4
2555976020
n×5
3194970025
n÷2
319497002.5
n÷3
212998001.66667
n÷3
159748501.25
n÷5
127798801
n2
408313338425940025
n3
2.6090977541571E+26
n4
1.6671978233654E+35
n5
1.0653294142795E+44
2 √n
25278.330739984
3 √n
861.32210786391
4 √n
158.991605879
5 √n
57.689842957732
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
-638994004
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 638994005 can be divided by 8 positive divisors.
The sum of these divisors (counting 638994005) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110000101100100011001010101
3
Ternary
1122112101020222122
4
Quaternary
212011210121111
5
Quinary
2302040302010
6
Senary
143223505325
8
Octal
4605443125
10
Decimal
638994005
12
Duodecimal
159bb8245
16
Hexadecimal
26164655
20
Vigesimal
9jde505
36
Base36
akfuxh
md5
350833c3272ad641e1255cbb37c40566
sha1
98f6aa6956cba16b13b9adc962871f4a5a56d3a8
sha256
d19025eae3ffc3417802c0a8ec8b24b8484a6e1f75de8a1fc7e6953bf415eb05
sha512
d86d6bdf1ddbd4e117139375fc6b59cdb003accc62029aeb4ba9f6ebc273babec84021dd7b45909191e764813661a7672b6be15ea06212e2754608f7cadb6ca1
ripemd-160
732225c752693d94358fcf56179c5f4c50d8e700
Diameter
1277988010
Circumference
4014917743.5918
Area
1.2827541843617E+18
Volume
1.0928963115944E+27
Surface area
5.1310167374466E+18
Circumference
4014917743.5918
Perimeter
2555976020
Area
408313338425940025
Diagonal
903673988.1461
Surface area
2449880030555640150
Volume
2.6090977541571E+26
Space diagonal
1106770082.3919
Perimeter
1916982015
Area
1.7680486189045E+17
Altitude
553385041.19596
Surface area
1.7680486189045E+17
Volume
3.0748511912385E+25
Height
301224662.71537