12806987 is an odd 8-digits composite number following 12806986
and preceding 12806988 . In scientific notation, it is written as 1.2806987 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 12799776 positive integers (up to 12806987) that are relatively prime to 12806987.
12806987 has 4 divisors, whose sum is 12814200
The reverse of 12806987 is 78960821
Previous prime number is 3163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twelve million eight hundred six thousand nine hundred eighty-seven
Scientific notation
1.2806987 × 10^7
Engineering notation
1.2806987 × 10^6
Prime Factorization
3163 × 4049
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12806987
Product of the distinct prime numbers
The prime factorization of 12806987 is 3163 × 4049.
Since it has a total of 2 prime factors.
6 , 7 , 26 , 30 , 410 , 286 , 3093 , 4838 , 11062 , 37962 , 727189 , 395544 , 8338670 , 9924624 , 80695375 , 86647969 , 870077366 , 6183061 , 4342022496 , 2230956635
n×2
25613974
n×3
38420961
n×4
51227948
n×5
64034935
n÷2
6403493.5
n÷3
4268995.6666667
n÷3
3201746.75
n÷5
2561397.4
n2
164018916018169
n3
2.1005881251988E+21
n4
2.6902204811775E+28
n5
3.4453618729574E+35
2 √n
3578.6850937181
3 √n
233.96397404816
4 √n
59.82211208005
5 √n
26.393038649656
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
-12806986
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 12806987 can be divided by 4 positive divisors.
The sum of these divisors (counting 12806987) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110110101101001011
3
Ternary
220002122212212
4
Quaternary
300312231023
5
Quinary
11234310422
6
Senary
1134255335
8
Octal
60665513
10
Decimal
12806987
12
Duodecimal
435754b
16
Hexadecimal
c36b4b
20
Vigesimal
400h97
36
Base36
7mhxn
md5
6c6f2a37927a1d4913e432fcc4efd7b8
sha1
bbc4f6aad6386885c7ed2d7e70999c226d8692a6
sha256
ecca1402d27a9719011200dc1f452b98e10986ac4881b9ee8106aa5ea728ab9a
sha512
1f0d50e3fa72dd6d8abb2c476974383af8a66159ef909b4e2502af270dd9b6e573224406a7ad133533fc7eb8f8cd3ee057757ab51556b011e39c2b1d921f848d
ripemd-160
2b84acd5883d85b6bbcd3e719888905211b7aa60
Diameter
25613974
Circumference
80468672.54764
Area
5.1528062161244E+14
Volume
8.7989229631233E+21
Surface area
2.0611224864498E+15
Circumference
80468672.54764
Perimeter
51227948
Area
164018916018169
Diagonal
18111814.708536
Surface area
984113496109014
Volume
2.1005881251988E+21
Space diagonal
22182352.175874
Perimeter
38420961
Area
71022273986460
Altitude
11091176.087937
Surface area
71022273986460
Volume
2.4755668463467E+20
Height
6037271.569512