12821387 is an odd 8-digits composite number following 12821386
and preceding 12821388 . In scientific notation, it is written as 1.2821387 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 12777336 positive integers (up to 12821387) that are relatively prime to 12821387.
12821387 has 4 divisors, whose sum is 12865440
The reverse of 12821387 is 78312821
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million eight hundred twenty-one thousand three hundred eighty-seven
Scientific notation
1.2821387 × 10^7
Engineering notation
1.2821387 × 10^6
Prime Factorization
293 × 43759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12821387
Product of the distinct prime numbers
The prime factorization of 12821387 is 293 × 43759.
Since it has a total of 2 prime factors.
1 , 6 , 40 , 33 , 179 , 880 , 1350 , 6628 , 72569 , 27445 , 658207 , 569577 , 8889426 , 3303140 , 2334231 , 27423356 , 245879411 , 304291165 , 9159088220 , 6913216737
n×2
25642774
n×3
38464161
n×4
51285548
n×5
64106935
n÷2
6410693.5
n÷3
4273795.6666667
n÷3
3205346.75
n÷5
2564277.4
n2
164387964603769
n3
2.1076817123272E+21
n4
2.702340290657E+28
n5
3.4647750672206E+35
2 √n
3580.6964406383
3 √n
234.05162982799
4 √n
59.838920784372
5 √n
26.39897117599
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
-12821386
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 12821387 can be divided by 4 positive divisors.
The sum of these divisors (counting 12821387) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111010001110001011
3
Ternary
220010101122012
4
Quaternary
300322032023
5
Quinary
11240241022
6
Senary
1134450135
8
Octal
60721613
10
Decimal
12821387
12
Duodecimal
436394b
16
Hexadecimal
c3a38b
20
Vigesimal
402d97
36
Base36
7mt1n
md5
b8f69b0da56b05f046f049df6fe436d5
sha1
be61749d5e3bfff686642be17642abfdf8710381
sha256
bdf0d8c40cfa264b4232ea5602692f5f92c0c11033354c47f2fd12a29b45d22d
sha512
53b379a4c86ac830f0b8dcdbcdc3891702bd9302058bc0edc38b52b596ea527a7526677633784c81bd5937ef628e21998088c287afbff68b63d2fabb82b6ae56
ripemd-160
05b0cc753eb0255ae3941826d966de0921d75df4
Diameter
25642774
Circumference
80559150.416063
Area
5.1644002193778E+14
Volume
8.8286365114037E+21
Surface area
2.0657600877511E+15
Circumference
80559150.416063
Perimeter
51285548
Area
164387964603769
Diagonal
18132179.383834
Surface area
986327787622614
Volume
2.1076817123272E+21
Space diagonal
22207293.707503
Perimeter
38464161
Area
71182076711641
Altitude
11103646.853752
Surface area
71182076711641
Volume
2.4839267189491E+20
Height
6044059.7946114