12987055 is an odd 8-digits composite number following 12987054
and preceding 12987056 . In scientific notation, it is written as 1.2987055 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 10375200 positive integers (up to 12987055) that are relatively prime to 12987055.
12987055 has 8 divisors, whose sum is 15606144
The reverse of 12987055 is 55078921
Previous prime number is 991
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million nine hundred eighty-seven thousand fifty-five
Scientific notation
1.2987055 × 10^7
Engineering notation
1.2987055 × 10^6
Prime Factorization
5 × 991 × 2621
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12987055
Product of the distinct prime numbers
The prime factorization of 12987055 is 5 × 991 × 2621.
Since it has a total of 3 prime factors.
5 , 4 , 16 , 66 , 822 , 715 , 6058 , 7148 , 89990 , 84932 , 269910 , 25582 , 3502526 , 4366753 , 68561119 , 51560650 , 619813844 , 742343430 , 1456534722 , 1372552898
n×2
25974110
n×3
38961165
n×4
51948220
n×5
64935275
n÷2
6493527.5
n÷3
4329018.3333333
n÷3
3246763.75
n÷5
2597411
n2
168663597573025
n3
2.1904434181787E+21
n4
2.8447409146275E+28
n5
3.6944806719018E+35
2 √n
3603.7556798429
3 √n
235.05539662795
4 √n
60.031289173588
5 √n
26.466842682033
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
-12987054
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 12987055 can be divided by 8 positive divisors.
The sum of these divisors (counting 12987055) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100010101010101111
3
Ternary
220102210220001
4
Quaternary
301202222233
5
Quinary
11311041210
6
Senary
1142205131
8
Octal
61425257
10
Decimal
12987055
12
Duodecimal
44237a7
16
Hexadecimal
c62aaf
20
Vigesimal
4137cf
36
Base36
7qcvj
md5
cd3325a5289b466a8da0021cede0f8c5
sha1
eaf430ef712124408d4ad42946cd2df417a640ae
sha256
5c7ced062d2e70a80caa98575049d5cba7e06ce90569b3a398646189ab702a5a
sha512
d242af283988118eb42ed08d4e90025e668905fcf2949d9067b0393d7ca67f654a1335afbe180e1823d17d44abd19e15963a298a725809da697d715f769cfc63
ripemd-160
12e1f5775645205aab7f9bc3a4c2a2bbd6f67ee2
Diameter
25974110
Circumference
81600073.159533
Area
5.2987231906344E+14
Volume
9.1753079342059E+21
Surface area
2.1194892762538E+15
Circumference
81600073.159533
Perimeter
51948220
Area
168663597573025
Diagonal
18366469.316285
Surface area
1011981585438150
Volume
2.1904434181787E+21
Space diagonal
22494239.100691
Perimeter
38961165
Area
73033480095958
Altitude
11247119.550346
Surface area
73033480095958
Volume
2.581462324666E+20
Height
6122156.4387618