638993869 is an odd 9-digits composite number following 638993868
and preceding 638993870 . In scientific notation, it is written as 6.38993869 × 10^8.
The sum of its digits is 61. It has a total of 2 prime factors and 4 positive divisors.
There are 633338944 positive integers (up to 638993869) that are relatively prime to 638993869.
638993869 has 4 divisors, whose sum is 644648796
The reverse of 638993869 is 968399836
Previous prime number is 113
Is Prime? no Number parity odd Number length 9 Sum of Digits 61 Digital Root 7
Name
six hundred thirty-eight million nine hundred ninety-three thousand eight hundred sixty-nine
Scientific notation
6.38993869 × 10^8
Engineering notation
6.38993869 × 10^6
Prime Factorization
113 × 5654813
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
638993869 Product of the distinct prime numbers
The prime factorization of 638993869 is 113 × 5654813.
Since it has a total of 2 prime factors.
7 , 2 , 80 , 55 , 40 , 549 , 3613 , 6830 , 59307 , 1545 , 468522 , 462412 , 5101654 , 6366273 , 36206902 , 94609319 , 442114676 , 102969679 , 5898840366 , 8793884181
n×2
1277987738
n×3
1916981607
n×4
2555975476
n×5
3194969345
n÷2
319496934.5
n÷3
212997956.33333
n÷3
159748467.25
n÷5
127798773.8
n2
408313164619589161
n3
2.6090960882391E+26
n4
1.6671964040166E+35
n5
1.0653282805855E+44
2 √n25278.328049932
3 √n861.32204675754
4 √n158.99159741927
5 √n57.689840502054
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
-638993868 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 638993869 can be divided by 4 positive divisors.
The sum of these divisors (counting 638993869) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110000101100100010111001101
3
Ternary
1122112101020210121
4
Quaternary
212011210113031
5
Quinary
2302040300434
6
Senary
143223504541
8
Octal
4605442715
10
Decimal
638993869
12
Duodecimal
159bb8151
16
Hexadecimal
261645cd
20
Vigesimal
9jde4d9
36
Base36
akfutp
md5
987c0a1a4340fa66d39cdd40b380bea8
sha1
82659de36b4265ceec3283bbcbb8d4bfc4818aae
sha256
ad35b3c10e1ce38d986641194bd239d70785bd306fe65c92a9bb818eb59214c9
sha512
035419de00fc4f30af68dcfc92eb994ccb0537e2423d804f4e3134db622229d47e2ad17464515aa35dea51384c56431ee27e39425869cf3cc688bf387678aa13
ripemd-160
ce3d7decd38b9e80a895acff8f7647eedbcbb426
Diameter
1277987738
Circumference
4014916889.0786
Area
1.2827536383329E+18
Volume
1.0928956137762E+27
Surface area
5.1310145533316E+18
Circumference
4014916889.0786
Perimeter
2555975476
Area
408313164619589161
Diagonal
903673795.81306
Surface area
2449878987717534966
Volume
2.6090960882391E+26
Space diagonal
1106769846.833
Perimeter
1916981607
Area
1.7680478663009E+17
Altitude
553384923.41651
Surface area
1.7680478663009E+17
Volume
3.0748492279352E+25
Height
301224598.60435