1387388638 (number)

1387388638 is an even 10-digits composite number following 1387388637 and preceding 1387388639. In scientific notation, it is written as 1.387388638 × 10^9. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 693694318 positive integers (up to 1387388638) that are relatively prime to 1387388638.

Interesting facts

Basic properties

Name

Name one billion three hundred eighty-seven million three hundred eighty-eight thousand six hundred thirty-eight

Notation

Scientific notation 1.387388638 × 10^9
Engineering notation 1.387388638 × 10^9

Prime Factorization of 1387388638

Prime Factorization 2 × 693694319

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1387388638
Product of the distinct prime numbers

The prime factorization of 1387388638 is 2 × 693694319. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 5, 55, 50, 924, 783, 5565, 2693, 16159, 63812, 936462, 567914, 3599789, 327059, 65582773, 37036715, 55757597, 470887452, 6952139250, 5649640577

Basic calculations (n = 1387388638)

Multiplication

n×y
n×2 2774777276
n×3 4162165914
n×4 5549554552
n×5 6936943190

Division

n÷y
n÷2 693694319
n÷3 462462879.33333
n÷3 346847159.5
n÷5 277477727.6

Exponentiation

ny
n2 1924847232851495044
n3 2.6705111807439E+27
n4 3.7050368698161E+36
n5 5.1403260565539E+45

Nth Root

y√n
2√n 37247.666208771
3√n 1115.3197117862
4√n 192.99654455137
5√n 67.365824059849

Divisors of 1387388638

1, 2, 693694319, 1387388638

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 -1387388637
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 1387388638 can be divided by 4 positive divisors. The sum of these divisors (counting 1387388638) is 1, the average is 0.25.

Base conversion 1387388638

Base System Value
2 Binary 1010010101100011101111011011110
3 Ternary 10120200121122102101
4 Quaternary 1102230131323132
5 Quinary 10320132414023
6 Senary 345400315314
8 Octal 12254357336
10 Decimal 1387388638
12 Duodecimal 328772b3a
16 Hexadecimal 52b1dede
20 Vigesimal 11db3bbi
36 Base36 my0jxa

Cryptographic Hash Functions

md5 3e045bccabb4e7ae96d7f14713efc67c
sha1 79762a6efd1c03f0a84d2ab0abc4da9d68e2ebf1
sha256 75208033224ea1aab6904c076770353c42bc5e207dd5c18ace76c667953b9e4c
sha512 5abb6950b65cab598adbcfb3247f63a8d72dcb14a7bba30d3782be98d73e85cf65a83f5e1ffe7a696cd9f2331eea656b417e8c4b7f643c5ed5e7359b180e6771
ripemd-160 e5f143be4f39348eed735600ebe785bdd1a93f18

1387388638 as geometric shapes

Circle

Radius = n
Diameter 2774777276
Circumference 8717219905.6295
Area 6.0470859260089E+18

Sphere

Radius = n
Volume 1.1186211075673E+28
Surface area 2.4188343704036E+19
Circumference 8717219905.6295

Square

Length = n
Perimeter 5549554552
Area 1924847232851495044
Diagonal 1962063828.1419

Cube

Length = n
Surface area 1.1549083397109E+19
Volume 2.6705111807439E+27
Space diagonal 2403027610.8598

Equilateral Triangle

Length = n
Perimeter 4162165914
Area 8.3348330102679E+17
Altitude 1201513805.4299

Triangular Pyramid

Length = n
Surface area 8.3348330102679E+17
Volume 3.1472276085642E+26
Height 654021276.04731