638778868 (number)

638778868 is an even 9-digits composite number following 638778867 and preceding 638778869. In scientific notation, it is written as 6.38778868 × 10^8. The sum of its digits is 61. It has a total of 6 prime factors and 48 positive divisors. There are 251475840 positive integers (up to 638778868) that are relatively prime to 638778868.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million seven hundred seventy-eight thousand eight hundred sixty-eight

Notation

Scientific notation 6.38778868 × 10^8
Engineering notation 6.38778868 × 10^6

Prime Factorization of 638778868

Prime Factorization 2 × 2 × 7 × 13 × 211 × 8317

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 319389434
Product of the distinct prime numbers

The prime factorization of 638778868 is 2 × 2 × 7 × 13 × 211 × 8317. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 4, 77, 2, 851, 942, 2555, 6060, 32175, 95087, 773470, 547121, 7610961, 1292341, 79013973, 63906816, 699802281, 788071421, 9224535652, 1896142441

Basic calculations (n = 638778868)

Multiplication

n×y
n×2 1277557736
n×3 1916336604
n×4 2555115472
n×5 3193894340

Division

n÷y
n÷2 319389434
n÷3 212926289.33333
n÷3 159694717
n÷5 127755773.6

Exponentiation

ny
n2 408038442203361424
n3 2.6064633421115E+26
n4 1.6649537031575E+35
n5 1.0635372417753E+44

Nth Root

y√n
2√n 25274.075017694
3√n 861.2254334806
4√n 158.97822183461
5√n 57.685957822212

Divisors of 638778868

1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 211, 364, 422, 844, 1477, 2743, 2954, 5486, 5908, 8317, 10972, 16634, 19201, 33268, 38402, 58219, 76804, 108121, 116438, 216242, 232876, 432484, 756847, 1513694, 1754887, 3027388, 3509774, 7019548, 12284209, 22813531, 24568418, 45627062, 49136836, 91254124, 159694717, 319389434, 638778868

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638778867
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638778868 can be divided by 48 positive divisors. The sum of these divisors (counting 638778868) is 1, the average is 0.020833333333333.

Base conversion 638778868

Base System Value
2 Binary 100110000100101111110111110100
3 Ternary 1122111222022212121
4 Quaternary 212010233313310
5 Quinary 2302011410433
6 Senary 143215125324
8 Octal 4604576764
10 Decimal 638778868
12 Duodecimal 159b13844
16 Hexadecimal 2612fdf4
20 Vigesimal 9jc7738
36 Base36 akb8xg

Cryptographic Hash Functions

md5 e997dde6ed687c9fdb96d33af471df2c
sha1 da041523b6435a9553663957dedf5e81243181a5
sha256 146880dc0843cf1f6771ea933f54c13dc353d2caa50b701550abc4e03fe50b4c
sha512 efc2ae602db279630b354ec9f487a3e1da1f338f1c118553ebb0a2ebfb4190f41edf370c486da88f832438d6e82380f02b4c40f140b64979a777e1dbe4f98177
ripemd-160 8fdb688cac67848a5175d57e83573642c10858ce

638778868 as geometric shapes

Circle

Radius = n
Diameter 1277557736
Circumference 4013565997.9544
Area 1.2818905724083E+18

Sphere

Radius = n
Volume 1.0917928116571E+27
Surface area 5.1275622896332E+18
Circumference 4013565997.9544

Square

Length = n
Perimeter 2555115472
Area 408038442203361424
Diagonal 903369738.48293

Cube

Length = n
Surface area 2448230653220168544
Volume 2.6064633421115E+26
Space diagonal 1106397454.1773

Equilateral Triangle

Length = n
Perimeter 1916336604
Area 1.7668582833437E+17
Altitude 553198727.08867

Triangular Pyramid

Length = n
Surface area 1.7668582833437E+17
Volume 3.0717465068686E+25
Height 301123246.16098