638640983 is an odd 9-digits composite number following 638640982
and preceding 638640984 . In scientific notation, it is written as 6.38640983 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 638452368 positive integers (up to 638640983) that are relatively prime to 638640983.
638640983 has 4 divisors, whose sum is 638829600
The reverse of 638640983 is 389046836
Previous prime number is 3449
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
six hundred thirty-eight million six hundred forty thousand nine hundred eighty-three
Scientific notation
6.38640983 × 10^8
Engineering notation
6.38640983 × 10^6
Prime Factorization
3449 × 185167
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
638640983
Product of the distinct prime numbers
The prime factorization of 638640983 is 3449 × 185167.
Since it has a total of 2 prime factors.
3 , 9 , 64 , 45 , 949 , 760 , 544 , 9978 , 71227 , 64649 , 311974 , 493303 , 4512065 , 2767016 , 46749773 , 23805251 , 924104466 , 373664397 , 4001116751 , 7406168907
n×2
1277281966
n×3
1915922949
n×4
2554563932
n×5
3193204915
n÷2
319320491.5
n÷3
212880327.66667
n÷3
159660245.75
n÷5
127728196.6
n2
407862305167206289
n3
2.6047758350063E+26
n4
1.6635165997631E+35
n5
1.0623898765095E+44
2 √n
25271.347075295
3 √n
861.16346179253
4 √n
158.96964199272
5 √n
57.683467221613
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-638640982
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638640983 can be divided by 4 positive divisors.
The sum of these divisors (counting 638640983) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110000100001110001101010111
3
Ternary
1122111201022201202
4
Quaternary
212010032031113
5
Quinary
2301443002413
6
Senary
143212143115
8
Octal
4604161527
10
Decimal
638640983
12
Duodecimal
159a67a9b
16
Hexadecimal
2610e357
20
Vigesimal
9jba293
36
Base36
ak8ajb
md5
0fe22a45538920bf20b6bbd4ed62ef35
sha1
c149e5636f2cf605c83400652ffce0f862ddfe91
sha256
ebad53677a837c9190ce5a1786c2d22954c76eb137071a6853412fcc75bddfce
sha512
b3c37248d19512f7be00d7fc78341bf7c1c3a88e674324e8138d2428407a1c713bcaf88603c78dab207a425860f8c5fe2f9912a6abccdc47420ad8ef8c9f66a9
ripemd-160
5ca07a0b6716dbfeece995b933eb12adff5eab32
Diameter
1277281966
Circumference
4012699640.9483
Area
1.2813372215895E+18
Volume
1.0910859503339E+27
Surface area
5.125348886358E+18
Circumference
4012699640.9483
Perimeter
2554563932
Area
407862305167206289
Diagonal
903174739.64589
Surface area
2447173831003237734
Volume
2.6047758350063E+26
Space diagonal
1106158630.3517
Perimeter
1915922949
Area
1.7660955876044E+17
Altitude
553079315.17587
Surface area
1.7660955876044E+17
Volume
3.069757760673E+25
Height
301058246.54863