12987811 (number)

12987811 is an odd 8-digits composite number following 12987810 and preceding 12987812. In scientific notation, it is written as 1.2987811 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 12256992 positive integers (up to 12987811) that are relatively prime to 12987811.

Interesting facts

Basic properties

Name

Name twelve million nine hundred eighty-seven thousand eight hundred eleven

Notation

Scientific notation 1.2987811 × 10^7
Engineering notation 1.2987811 × 10^6

Prime Factorization of 12987811

Prime Factorization 19 × 293 × 2333

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12987811
Product of the distinct prime numbers

The prime factorization of 12987811 is 19 × 293 × 2333. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12987811)

Multiplication

n×y
n×2 25975622
n×3 38963433
n×4 51951244
n×5 64939055

Division

n÷y
n÷2 6493905.5
n÷3 4329270.3333333
n÷3 3246952.75
n÷5 2597562.2

Exponentiation

ny
n2 168683234571721
n3 2.1908259694862E+21
n4 2.8454033625578E+28
n5 3.6955561091666E+35

Nth Root

y√n
2√n 3603.86056889
3√n 235.05995753961
4√n 60.032162787043
5√n 26.46715081143

Divisors of 12987811

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12987810
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12987811 can be divided by 8 positive divisors. The sum of these divisors (counting 12987811) is 1, the average is 0.125.

Base conversion 12987811

Base System Value
2 Binary 110001100010110110100011
3 Ternary 220102211221001
4 Quaternary 301202312203
5 Quinary 11311102221
6 Senary 1142212431
8 Octal 61426643
10 Decimal 12987811
12 Duodecimal 4424117
16 Hexadecimal c62da3
20 Vigesimal 4139ab
36 Base36 7qdgj

Cryptographic Hash Functions

md5 8b23d87a2ac29b9adbd5352d55720321
sha1 2b627ff71e3ce28c07e6fc19568536af03590bd0
sha256 c5c64e40931ab27a0eb63aae91091180184b17fb186a9a7cd3b7ba08c2dc10a9
sha512 26735c9bb3197a564ea76f570d4986151333ad93c56a4f1f98fcf824c95a90ad82c25984d184c696c5edf360630973b8605092bb241cba882dcef8e337c5de22
ripemd-160 4d546b99afdca647186030d6022d6d88bae34dd8

12987811 as geometric shapes

Circle

Radius = n
Diameter 25975622
Circumference 81604823.247625
Area 5.2993401051428E+14

Sphere

Radius = n
Volume 9.1769103613754E+21
Surface area 2.1197360420571E+15
Circumference 81604823.247625

Square

Length = n
Perimeter 51951244
Area 168683234571721
Diagonal 18367538.461738

Cube

Length = n
Surface area 1012099407430326
Volume 2.1908259694862E+21
Space diagonal 22495548.531102

Equilateral Triangle

Length = n
Perimeter 38963433
Area 73041983165820
Altitude 11247774.265551

Triangular Pyramid

Length = n
Surface area 73041983165820
Volume 2.5819131657054E+20
Height 6122512.8205795