12981009 is an odd 8-digits composite number following 12981008
and preceding 12981010 . In scientific notation, it is written as 1.2981009 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 7914816 positive integers (up to 12981009) that are relatively prime to 12981009.
12981009 has 8 divisors, whose sum is 13823040
The reverse of 12981009 is 90018921
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twelve million nine hundred eighty-one thousand nine
Scientific notation
1.2981009 × 10^7
Engineering notation
1.2981009 × 10^6
Prime Factorization
87 × 19 × 7853
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12981009
Product of the distinct prime numbers
The prime factorization of 12981009 is 87 × 19 × 7853.
Since it has a total of 3 prime factors.
5 , 9 , 80 , 2 , 635 , 446 , 5413 , 5025 , 24699 , 59230 , 251860 , 963183 , 6632535 , 5127815 , 53298529 , 74206389 , 144169557 , 294902753 , 194181060 , 2094804012
n×2
25962018
n×3
38943027
n×4
51924036
n×5
64905045
n÷2
6490504.5
n÷3
4327003
n÷3
3245252.25
n÷5
2596201.8
n2
168506594658081
n3
2.1873856218159E+21
n4
2.8394472443263E+28
n5
3.6858890233625E+35
2 √n
3602.9167350912
3 √n
235.01891503099
4 √n
60.024301204522
5 √n
26.464377945613
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
-12981008
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 12981009 can be divided by 8 positive divisors.
The sum of these divisors (counting 12981009) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100001001100010001
3
Ternary
220102111121010
4
Quaternary
301201030101
5
Quinary
11310343014
6
Senary
1142121133
8
Octal
61411421
10
Decimal
12981009
12
Duodecimal
44201a9
16
Hexadecimal
c61311
20
Vigesimal
412ca9
36
Base36
7q87l
md5
248a7f9abaa12028da8b5bbdcdf9722c
sha1
7594cb4af0fc265187097372b19e5f682430464c
sha256
63afb5a8cc8c51cc3f67aa638e37477af66e8d38d148e986fed965f1a86a7e81
sha512
012017106fd35a04bad89bbd6b4c4eebe4219fd5afc01a844c7cbf3d1924eb46c8455e89c57b1a4cfc1d7b9b8393ac82cb0be562a6a681199f9dc162219fee28
ripemd-160
56a3dfa9286c491ec03f6b1818899ee2fe1d8dc8
Diameter
25962018
Circumference
81562085.021166
Area
5.2937907985926E+14
Volume
9.162499466753E+21
Surface area
2.117516319437E+15
Circumference
81562085.021166
Perimeter
51924036
Area
168506594658081
Diagonal
18357918.981087
Surface area
1011039567948486
Volume
2.1873856218159E+21
Space diagonal
22483767.121509
Perimeter
38943027
Area
72965495839553
Altitude
11241883.560754
Surface area
72965495839553
Volume
2.5778586770933E+20
Height
6119306.3270291