638406465 is an odd 9-digits composite number following 638406464
and preceding 638406466 . In scientific notation, it is written as 6.38406465 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 334058816 positive integers (up to 638406465) that are relatively prime to 638406465.
638406465 has 8 divisors, whose sum is 693816192
The reverse of 638406465 is 564604836
Previous prime number is 53
Is Prime? no Number parity odd Number length 9 Sum of Digits 42 Digital Root 6
Name
six hundred thirty-eight million four hundred six thousand four hundred sixty-five
Scientific notation
6.38406465 × 10^8
Engineering notation
6.38406465 × 10^6
Prime Factorization
15 × 53 × 803027
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
638406465 Product of the distinct prime numbers
The prime factorization of 638406465 is 15 × 53 × 803027.
Since it has a total of 3 prime factors.
7 , 9 , 44 , 9 , 284 , 247 , 7637 , 2030 , 73213 , 77824 , 897485 , 18334 , 3199031 , 719599 , 63495566 , 16892611 , 837697362 , 269356907 , 9111013001 , 4186426950
n×2
1276812930
n×3
1915219395
n×4
2553625860
n×5
3192032325
n÷2
319203232.5
n÷3
212802155
n÷3
159601616.25
n÷5
127681293
n2
407562814553796225
n3
2.6019073570474E+26
n4
1.6610744780701E+35
n5
1.0604406856465E+44
2 √n25266.706651244
3 √n861.05803842019
4 √n158.95504600749
5 √n57.679230162231
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
-638406464 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 638406465 can be divided by 8 positive divisors.
The sum of these divisors (counting 638406465) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110000011010100111101000001
3
Ternary
1122111021102000220
4
Quaternary
212003110331001
5
Quinary
2301413001330
6
Senary
143203133253
8
Octal
4603247501
10
Decimal
638406465
12
Duodecimal
159974229
16
Hexadecimal
260d4f41
20
Vigesimal
9ja0g35
36
Base36
ak39kx
md5
0c291d1fa8f2155785a3af4b36eebc8b
sha1
dfcb6faddfd1d039fb4732716f05f316701d3e04
sha256
695dcf0af9eb3f759c7ecf62381703fb2d5cd86a6d28341c1dee6818756d737a
sha512
7a1b556f965fa24b38a83afd7b627936dc541f2ff46a49aba1265370cf58fc6f27cf600f0df70417b8788f4425ce0d5479045f5252046d8b42fe6b39c20afffe
ripemd-160
3a6d68cf7f833c8dcd5d8312a7c526041b57e6ee
Diameter
1276812930
Circumference
4011226120.8965
Area
1.2803963440786E+18
Volume
1.0898844050962E+27
Surface area
5.1215853763143E+18
Circumference
4011226120.8965
Perimeter
2553625860
Area
407562814553796225
Diagonal
902843081.10966
Surface area
2445376887322777350
Volume
2.6019073570474E+26
Space diagonal
1105752433.2604
Perimeter
1915219395
Area
1.7647987552074E+17
Altitude
552876216.63022
Surface area
1.7647987552074E+17
Volume
3.066377226979E+25
Height
300947693.70322