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.
12987811 has 8 divisors, whose sum is 13723920
The reverse of 12987811 is 11878921
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million nine hundred eighty-seven thousand eight hundred eleven
Scientific notation
1.2987811 × 10^7
Engineering notation
1.2987811 × 10^6
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.
10 , 1 , 37 , 57 , 676 , 533 , 6618 , 5536 , 48814 , 92205 , 766621 , 849799 , 3795135 , 7491641 , 16551691 , 99189825 , 388271488 , 906891567 , 5495743553 , 9331105083
n×2
25975622
n×3
38963433
n×4
51951244
n×5
64939055
n÷2
6493905.5
n÷3
4329270.3333333
n÷3
3246952.75
n÷5
2597562.2
n2
168683234571721
n3
2.1908259694862E+21
n4
2.8454033625578E+28
n5
3.6955561091666E+35
2 √n
3603.86056889
3 √n
235.05995753961
4 √n
60.032162787043
5 √n
26.46715081143
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
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
md5
8b23d87a2ac29b9adbd5352d55720321
sha1
2b627ff71e3ce28c07e6fc19568536af03590bd0
sha256
c5c64e40931ab27a0eb63aae91091180184b17fb186a9a7cd3b7ba08c2dc10a9
sha512
26735c9bb3197a564ea76f570d4986151333ad93c56a4f1f98fcf824c95a90ad82c25984d184c696c5edf360630973b8605092bb241cba882dcef8e337c5de22
ripemd-160
4d546b99afdca647186030d6022d6d88bae34dd8
Diameter
25975622
Circumference
81604823.247625
Area
5.2993401051428E+14
Volume
9.1769103613754E+21
Surface area
2.1197360420571E+15
Circumference
81604823.247625
Perimeter
51951244
Area
168683234571721
Diagonal
18367538.461738
Surface area
1012099407430326
Volume
2.1908259694862E+21
Space diagonal
22495548.531102
Perimeter
38963433
Area
73041983165820
Altitude
11247774.265551
Surface area
73041983165820
Volume
2.5819131657054E+20
Height
6122512.8205795