1388891391 (number)

1388891391 is an odd 10-digits composite number following 1388891390 and preceding 1388891392. In scientific notation, it is written as 1.388891391 × 10^9. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 925927592 positive integers (up to 1388891391) that are relatively prime to 1388891391.

Interesting facts

Basic properties

Name

Name one billion three hundred eighty-eight million eight hundred ninety-one thousand three hundred ninety-one

Notation

Scientific notation 1.388891391 × 10^9
Engineering notation 1.388891391 × 10^9

Prime Factorization of 1388891391

Prime Factorization 3 × 462963797

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1388891391
Product of the distinct prime numbers

The prime factorization of 1388891391 is 3 × 462963797. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 10, 42, 19, 956, 606, 8038, 808, 7302, 52579, 498862, 673195, 4971977, 3660152, 26099698, 66755147, 101288421, 409788111, 5550828905, 9979058288

Basic calculations (n = 1388891391)

Multiplication

n×y
n×2 2777782782
n×3 4166674173
n×4 5555565564
n×5 6944456955

Division

n÷y
n÷2 694445695.5
n÷3 462963797
n÷3 347222847.75
n÷5 277778278.2

Exponentiation

ny
n2 1929019295993914881
n3 2.6791982932788E+27
n4 3.7211154443169E+36
n5 5.1682252055288E+45

Nth Root

y√n
2√n 37267.833194325
3√n 1115.7222534681
4√n 193.04878449326
5√n 67.380411228736

Divisors of 1388891391

1, 3, 462963797, 1388891391

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 -1388891390
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 1388891391 can be divided by 4 positive divisors. The sum of these divisors (counting 1388891391) is 1, the average is 0.25.

Base conversion 1388891391

Base System Value
2 Binary 1010010110010001100110011111111
3 Ternary 10120210102222210220
4 Quaternary 1102302030303333
5 Quinary 10321024011031
6 Senary 345452432423
8 Octal 12262146377
10 Decimal 1388891391
12 Duodecimal 329178713
16 Hexadecimal 52c8ccff
20 Vigesimal 11e0b89b
36 Base36 mywrgf

Cryptographic Hash Functions

md5 b14e621cb061e7b8af5167153ef3f961
sha1 f6370af2d490215700cbb3681e9513477e6bac37
sha256 fe7f8c6c29a6d78971dadd48d8b3dbf17ec22c1eb94f553fac6cd8061613c86a
sha512 12dacff00faa9f2a4eaf0b87e850958086e21bcb2af232ee0bef35df05fea17040c465e52f1090fc55418e95be46f1210c7e1e1be963d3cada8c98efee9c3502
ripemd-160 9e659276cff2a6c276f13739f787ade74b1900f4

1388891391 as geometric shapes

Circle

Radius = n
Diameter 2777782782
Circumference 8726661981.1994
Area 6.0601928489274E+18

Sphere

Radius = n
Volume 1.1222599567567E+28
Surface area 2.424077139571E+19
Circumference 8726661981.1994

Square

Length = n
Perimeter 5555565564
Area 1929019295993914881
Diagonal 1964189041.8154

Cube

Length = n
Surface area 1.1574115775963E+19
Volume 2.6791982932788E+27
Space diagonal 2405630455.407

Equilateral Triangle

Length = n
Perimeter 4166674173
Area 8.3528985736055E+17
Altitude 1202815227.7035

Triangular Pyramid

Length = n
Surface area 8.3528985736055E+17
Volume 3.1574654688681E+26
Height 654729680.60514