12981587 is an odd 8-digits prime number following 12981586
and preceding 12981588 . In scientific notation, it is written as 1.2981587 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 12981586 positive integers (up to 12981587) that are relatively prime to 12981587.
12981587 has 2 divisors, whose sum is 12981588
The reverse of 12981587 is 78518921
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twelve million nine hundred eighty-one thousand five hundred eighty-seven
Scientific notation
1.2981587 × 10^7
Engineering notation
1.2981587 × 10^6
Prime Factorization
12981587
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12981587
Product of the distinct prime numbers
The prime factorization of 12981587 is 12981587.
Since it has a total of 1 prime factors.
1 , 10 , 10 , 81 , 426 , 359 , 4777 , 2585 , 60219 , 60807 , 745744 , 194687 , 8304684 , 3275860 , 49441371 , 37846479 , 277738892 , 598050469 , 9596651613 , 7884577544
n×2
25963174
n×3
38944761
n×4
51926348
n×5
64907935
n÷2
6490793.5
n÷3
4327195.6666667
n÷3
3245396.75
n÷5
2596317.4
n2
168521601038569
n3
2.1876778252615E+21
n4
2.8399530016603E+28
n5
3.6867096966964E+35
2 √n
3602.9969469873
3 √n
235.02240317578
4 √n
60.024969362652
5 √n
26.46461361509
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12981588
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6490794
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3602.9970857607
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998459356
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12981587 can be divided by 2 positive divisors.
The sum of these divisors (counting 12981587) is 12981588, the average is 6490794.
Base
System
Value
2
Binary
110001100001010101010011
3
Ternary
220102112101112
4
Quaternary
301201111103
5
Quinary
11310402322
6
Senary
1142123535
8
Octal
61412523
10
Decimal
12981587
12
Duodecimal
44205ab
16
Hexadecimal
c61553
20
Vigesimal
412dj7
36
Base36
7q8nn
md5
ffdd47689e24492410d9a09236128ed1
sha1
2473d9ace04ef909cd674aac98fa3bad76b5715d
sha256
e1fbc16a58e6a27c1ead66dec1271bcb81707e7b105e53d4a4e00fa08ed05b65
sha512
008d5fcf77fd4bae743ec884a666abd750f549d6794908662c87131a051236b8a40bf8cf938c092a0034d8b100a239dd6997434fe0c46c4389e09d32a9bfe232
ripemd-160
de9450bff6dc2797b6108ef7bfc154f43e5f4a44
Diameter
25963174
Circumference
81565716.702274
Area
5.2942622379396E+14
Volume
9.1637234456837E+21
Surface area
2.1177048951758E+15
Circumference
81565716.702274
Perimeter
51926348
Area
168521601038569
Diagonal
18358736.396526
Surface area
1011129606231414
Volume
2.1876778252615E+21
Space diagonal
22484768.246876
Perimeter
38944761
Area
72971993792913
Altitude
11242384.123438
Surface area
72971993792913
Volume
2.5782030421564E+20
Height
6119578.7988421