638998423 is an odd 9-digits composite number following 638998422
and preceding 638998424 . In scientific notation, it is written as 6.38998423 × 10^8.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 547712928 positive integers (up to 638998423) that are relatively prime to 638998423.
638998423 has 4 divisors, whose sum is 730283920
The reverse of 638998423 is 324899836
Previous prime number is 7
Is Prime? no Number parity odd Number length 9 Sum of Digits 52 Digital Root 7
Name
six hundred thirty-eight million nine hundred ninety-eight thousand four hundred twenty-three
Scientific notation
6.38998423 × 10^8
Engineering notation
6.38998423 × 10^6
Prime Factorization
7 × 91285489
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
638998423 Product of the distinct prime numbers
The prime factorization of 638998423 is 7 × 91285489.
Since it has a total of 2 prime factors.
9 , 1 , 15 , 39 , 431 , 74 , 7282 , 4997 , 86264 , 9669 , 807984 , 337684 , 973104 , 9719528 , 59451762 , 60107112 , 859000600 , 166329588 , 4088044594 , 8311154289
n×2
1277996846
n×3
1916995269
n×4
2555993692
n×5
3194992115
n÷2
319499211.5
n÷3
212999474.33333
n÷3
159749605.75
n÷5
127799684.6
n2
408318984596486929
n3
2.6091518723812E+26
n4
1.6672439318191E+35
n5
1.0653662431887E+44
2 √n25278.418126932
3 √n861.32409291764
4 √n158.991880695
5 √n57.689922730944
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
-638998422 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 638998423 can be divided by 4 positive divisors.
The sum of these divisors (counting 638998423) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110000101100101011110010111
3
Ternary
1122112101111001021
4
Quaternary
212011211132113
5
Quinary
2302040422143
6
Senary
143223542011
8
Octal
4605453627
10
Decimal
638998423
12
Duodecimal
159bba907
16
Hexadecimal
26165797
20
Vigesimal
9jdeg13
36
Base36
akfyc7
md5
81a5d54f9214167319c5878a69821dfd
sha1
a5eec475c1706828000844b90bc49845e482ef80
sha256
2d6dcf512d8f25e82f100261bd87915add41f1f699eb0b1970fb4030dc286249
sha512
355d5eb0659a3571192d79ffeacf3dcf5f41ce8c7cb755127cdc4624904a86c8656c7fb120bd7d1cd1d3974a769734a19ee17964dba836d955778dd4cb8388cb
ripemd-160
1fe8c5414fa4d9864069ca1695de8c6b9b8056ad
Diameter
1277996846
Circumference
4014945502.7045
Area
1.2827719223296E+18
Volume
1.092918980583E+27
Surface area
5.1310876893183E+18
Circumference
4014945502.7045
Perimeter
2555993692
Area
408318984596486929
Diagonal
903680236.14162
Surface area
2449913907578921574
Volume
2.6091518723812E+26
Space diagonal
1106777734.5924
Perimeter
1916995269
Area
1.7680730675401E+17
Altitude
553388867.29619
Surface area
1.7680730675401E+17
Volume
3.0749149701772E+25
Height
301226745.38054