12644987 is an odd 8-digits composite number following 12644986
and preceding 12644988 . In scientific notation, it is written as 1.2644987 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 12471696 positive integers (up to 12644987) that are relatively prime to 12644987.
12644987 has 4 divisors, whose sum is 12818280
The reverse of 12644987 is 78944621
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twelve million six hundred forty-four thousand nine hundred eighty-seven
Scientific notation
1.2644987 × 10^7
Engineering notation
1.2644987 × 10^6
Prime Factorization
73 × 173219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12644987
Product of the distinct prime numbers
The prime factorization of 12644987 is 73 × 173219.
Since it has a total of 2 prime factors.
2 , 6 , 56 , 99 , 144 , 483 , 558 , 8680 , 79720 , 74397 , 176225 , 579156 , 9255588 , 571147 , 980197 , 2824114 , 532304549 , 3882805 , 2125116800 , 3101565723
n×2
25289974
n×3
37934961
n×4
50579948
n×5
63224935
n÷2
6322493.5
n÷3
4214995.6666667
n÷3
3161246.75
n÷5
2528997.4
n2
159895696230169
n3
2.0218790001864E+21
n4
2.556663367293E+28
n5
3.2328975042797E+35
2 √n
3555.9790494321
3 √n
232.97328802803
4 √n
59.63203039837
5 √n
26.325927287663
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
-12644986
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 12644987 can be divided by 4 positive divisors.
The sum of these divisors (counting 12644987) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000001111001001111011
3
Ternary
212210102122212
4
Quaternary
300033021323
5
Quinary
11214114422
6
Senary
1131005335
8
Octal
60171173
10
Decimal
12644987
12
Duodecimal
429984b
16
Hexadecimal
c0f27b
20
Vigesimal
3j0c97
36
Base36
7j0xn
md5
88be667e9968b928c1939ac9a8ff44c4
sha1
da4f51ea207615b41273bf1fcfa36cc1ed87958c
sha256
84ee2bd6310ed4e06b980e2b329d9ffd1c599fa74172d36e8fb3e8f4ec5af07f
sha512
7a6c19eb31dccd9e1cd5d67120d1ae924432d4345702e6b491807ef5921d28a49ef4f62f58c85d1b885fe82f64d7f8069dce5437520a247d786d2c1b9f6b5809
ripemd-160
185bcd60e353fd9a976f264b0c6bab0e17ad02e7
Diameter
25289974
Circumference
79450796.527877
Area
5.0232714461732E+14
Volume
8.4692269512442E+21
Surface area
2.0093085784693E+15
Circumference
79450796.527877
Perimeter
50579948
Area
159895696230169
Diagonal
17882712.111431
Surface area
959374177381014
Volume
2.0218790001864E+21
Space diagonal
21901759.945048
Perimeter
37934961
Area
69236867445563
Altitude
10950879.972524
Surface area
69236867445563
Volume
2.3828072529508E+20
Height
5960904.0371438