638865065 (number)

638865065 is an odd 9-digits composite number following 638865064 and preceding 638865066. In scientific notation, it is written as 6.38865065 × 10^8. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 506110272 positive integers (up to 638865065) that are relatively prime to 638865065.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million eight hundred sixty-five thousand sixty-five

Notation

Scientific notation 6.38865065 × 10^8
Engineering notation 6.38865065 × 10^6

Prime Factorization of 638865065

Prime Factorization 5 × 149 × 383 × 2239

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638865065
Product of the distinct prime numbers

The prime factorization of 638865065 is 5 × 149 × 383 × 2239. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 18, 30, 737, 863, 7861, 9178, 4156, 84670, 210999, 881981, 5590846, 9610318, 8065410, 96928003, 247474376, 59024761, 5028344158, 2890159904

Basic calculations (n = 638865065)

Multiplication

n×y
n×2 1277730130
n×3 1916595195
n×4 2555460260
n×5 3194325325

Division

n÷y
n÷2 319432532.5
n÷3 212955021.66667
n÷3 159716266.25
n÷5 127773013

Exponentiation

ny
n2 408148571277454225
n3 2.6075186351883E+26
n4 1.6658525623583E+35
n5 1.0642550055314E+44

Nth Root

y√n
2√n 25275.780205564
3√n 861.26416973899
4√n 158.98358470472
5√n 57.68751457006

Divisors of 638865065

1, 5, 149, 383, 745, 1915, 2239, 11195, 57067, 285335, 333611, 857537, 1668055, 4287685, 127773013, 638865065

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638865064
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638865065 can be divided by 16 positive divisors. The sum of these divisors (counting 638865065) is 1, the average is 0.0625.

Base conversion 638865065

Base System Value
2 Binary 100110000101000100111010101001
3 Ternary 1122112010201010002
4 Quaternary 212011010322221
5 Quinary 2302022140230
6 Senary 143221032345
8 Octal 4605047251
10 Decimal 638865065
12 Duodecimal 159b556b5
16 Hexadecimal 26144ea9
20 Vigesimal 9jci2d5
36 Base36 akd3ft

Cryptographic Hash Functions

md5 ac5c309385f82ae680111a5c8fa624ac
sha1 9e7930c9f6fc37f56dc7036a93c495384c00acf6
sha256 1ea9248c5adfeea65a9c0bc711433d88a5b9803dd98ae6b640f5df3a04422eee
sha512 1625ca40ec741fbe812fa6924b2d5c07703ac252c8232c1941d628f33fac14f4f848168881204d8bca9203591fe9d78df5aecc885e6c25a6c6f1c130a9d839c0
ripemd-160 3114fecd5cc67a922a8ffc3d8eac6c5057edd8c3

638865065 as geometric shapes

Circle

Radius = n
Diameter 1277730130
Circumference 4014107589.6783
Area 1.2822365530984E+18

Sphere

Radius = n
Volume 1.0922348517875E+27
Surface area 5.1289462123937E+18
Circumference 4014107589.6783

Square

Length = n
Perimeter 2555460260
Area 408148571277454225
Diagonal 903491639.44937

Cube

Length = n
Surface area 2448891427664725350
Volume 2.6075186351883E+26
Space diagonal 1106546751.7608

Equilateral Triangle

Length = n
Perimeter 1916595195
Area 1.767335156223E+17
Altitude 553273375.8804

Triangular Pyramid

Length = n
Surface area 1.767335156223E+17
Volume 3.0729901816865E+25
Height 301163879.81646