638961728 is an even 9-digits composite number following 638961727
and preceding 638961729 . In scientific notation, it is written as 6.38961728 × 10^8.
The sum of its digits is 50. It has a total of 8 prime factors and 28 positive divisors.
There are 300687360 positive integers (up to 638961728) that are relatively prime to 638961728.
638961728 has 28 divisors, whose sum is 1342526652
The reverse of 638961728 is 827169836
Previous prime number is 17
Is Prime? no Number parity even Number length 9 Sum of Digits 50 Digital Root 5
Name
six hundred thirty-eight million nine hundred sixty-one thousand seven hundred twenty-eight
Scientific notation
6.38961728 × 10^8
Engineering notation
6.38961728 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 17 × 587281
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
8 Total number of prime factors
rad Radical
19967554 Product of the distinct prime numbers
The prime factorization of 638961728 is 2 × 2 × 2 × 2 × 2 × 2 × 17 × 587281.
Since it has a total of 8 prime factors.
3 , 10 , 93 , 98 , 337 , 601 , 3216 , 3906 , 48780 , 34653 , 843130 , 651119 , 9432537 , 9664916 , 87814337 , 8543540 , 286317574 , 450820876 , 2124921910 , 5455436193
n×2
1277923456
n×3
1916885184
n×4
2555846912
n×5
3194808640
n÷2
319480864
n÷3
212987242.66667
n÷3
159740432
n÷5
127792345.6
n2
408272089848745984
n3
2.6087024002393E+26
n4
1.6668609934946E+35
n5
1.0650603807391E+44
2 √n25277.692299733
3 √n861.30760519171
4 √n158.98959808658
5 √n57.689260137653
1 , 2 , 4 , 8 , 16 , 17 , 32 , 34 , 64 , 68 , 136 , 272 , 544 , 1088 , 587281 , 1174562 , 2349124 , 4698248 , 9396496 , 9983777 , 18792992 , 19967554 , 37585984 , 39935108 , 79870216 , 159740432 , 319480864 , 638961728
28 divisors
τ Total Divisors
28 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-638961727 Sum of the proper positive divisors of n
A Arithmetic Mean
0.035714285714286 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
28 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638961728 can be divided by 28 positive divisors.
The sum of these divisors (counting 638961728) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
100110000101011100100001000000
3
Ternary
1122112022121201012
4
Quaternary
212011130201000
5
Quinary
2302033233403
6
Senary
143223100052
8
Octal
4605344100
10
Decimal
638961728
12
Duodecimal
159ba1628
16
Hexadecimal
2615c840
20
Vigesimal
9jda468
36
Base36
akf60w
md5
7b8daa8275c5eaf66c195ef1dd4bda7c
sha1
8567279bb500c24bab5a95fce9e51266d265bba9
sha256
e4d2f0e5b012263082465b926407430086c9a51fa713fb4e62bd43c12534fd51
sha512
c8a9845dd5a4b28b09ed65bee199aa0fa5a9ec79b3d8334f2f17aa2c35635db04fa75e2f172d59d999683ec5f35eaa3b5882a0cf6d7e0d0a16691eb7f3a58894
ripemd-160
7ae732474de7eb2fbdfdbe75f7eadcc306af29c2
Diameter
1277923456
Circumference
4014714941.2197
Area
1.2826245981346E+18
Volume
1.0927307061325E+27
Surface area
5.1304983925383E+18
Circumference
4014714941.2197
Perimeter
2555846912
Area
408272089848745984
Diagonal
903628341.57495
Surface area
2449632539092475904
Volume
2.6087024002393E+26
Space diagonal
1106714176.988
Perimeter
1916885184
Area
1.7678700073259E+17
Altitude
553357088.494
Surface area
1.7678700073259E+17
Volume
3.074385262178E+25
Height
301209447.19165