638996980 is an even 9-digits composite number following 638996979
and preceding 638996981 . In scientific notation, it is written as 6.38996980 × 10^8.
The sum of its digits is 58. It has a total of 4 prime factors and 12 positive divisors.
There are 242146080 positive integers (up to 638996980) that are relatively prime to 638996980.
638996980 has 12 divisors, whose sum is 1130016384
The reverse of 638996980 is 089699836
Previous prime number is 95
Is Prime? no Number parity even Number length 9 Sum of Digits 58 Digital Root 4
Name
six hundred thirty-eight million nine hundred ninety-six thousand nine hundred eighty
Scientific notation
6.38996980 × 10^8
Engineering notation
6.38996980 × 10^6
Prime Factorization
2 × 2 × 95 × 1681571
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319498490 Product of the distinct prime numbers
The prime factorization of 638996980 is 2 × 2 × 95 × 1681571.
Since it has a total of 4 prime factors.
9 , 4 , 6 , 80 , 735 , 483 , 4994 , 5864 , 5793 , 20492 , 566074 , 10817 , 1894172 , 8731476 , 66764726 , 85503250 , 86124221 , 11643853 , 2197844443 , 448372002
n×2
1277993960
n×3
1916990940
n×4
2555987920
n×5
3194984900
n÷2
319498490
n÷3
212998993.33333
n÷3
159749245
n÷5
127799396
n2
408317140449120400
n3
2.6091341962922E+26
n4
1.6672288718455E+35
n5
1.0653542140781E+44
2 √n25278.389584782
3 √n861.32344456362
4 √n158.9917909352
5 √n57.689896675596
1 , 2 , 4 , 95 , 190 , 380 , 1681571 , 3363142 , 6726284 , 159749245 , 319498490 , 638996980
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-638996979 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638996980 can be divided by 12 positive divisors.
The sum of these divisors (counting 638996980) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000101100101000111110100
3
Ternary
1122112101102001211
4
Quaternary
212011211013310
5
Quinary
2302040400410
6
Senary
143223531204
8
Octal
4605450764
10
Decimal
638996980
12
Duodecimal
159bb9b04
16
Hexadecimal
261651f4
20
Vigesimal
9jdec90
36
Base36
akfx84
md5
530fb1c5a9689fbe6d8e7a2f22d84c41
sha1
ea3c994a8125d747854661c93befa645ac7acfc0
sha256
9b4c28c3cd7efe1bd5667aa0358c7bf5f5a42004c1b865c16cf95f5188e3410f
sha512
5b4fde2d309a65dfd266b72d50275c8d657e6c4d5edf9d85473288697aafe5c3f278d983e9f8308bb4d5d97dcde78b3e592eaf23e98333908551ef702382df2c
ripemd-160
dd3680a7cfee56cc7c877e16846aa56c9a3697f5
Diameter
1277993960
Circumference
4014936436.0681
Area
1.2827661287697E+18
Volume
1.0929115764402E+27
Surface area
5.131064515079E+18
Circumference
4014936436.0681
Perimeter
2555987920
Area
408317140449120400
Diagonal
903678195.43145
Surface area
2449902842694722400
Volume
2.6091341962922E+26
Space diagonal
1106775235.2431
Perimeter
1916990940
Area
1.7680650821478E+17
Altitude
553387617.62154
Surface area
1.7680650821478E+17
Volume
3.0748941387066E+25
Height
301226065.14382