12887638 is an even 8-digits composite number following 12887637
and preceding 12887639 . In scientific notation, it is written as 1.2887638 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 6411240 positive integers (up to 12887638) that are relatively prime to 12887638.
12887638 has 8 divisors, whose sum is 19429200
The reverse of 12887638 is 83678821
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twelve million eight hundred eighty-seven thousand six hundred thirty-eight
Scientific notation
1.2887638 × 10^7
Engineering notation
1.2887638 × 10^6
Prime Factorization
2 × 199 × 32381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12887638
Product of the distinct prime numbers
The prime factorization of 12887638 is 2 × 199 × 32381.
Since it has a total of 3 prime factors.
2 , 2 , 7 , 37 , 105 , 101 , 2260 , 9236 , 89657 , 57265 , 490151 , 405101 , 5751974 , 3847551 , 31927142 , 30494175 , 57726938 , 53300675 , 2028109845 , 1828762292
n×2
25775276
n×3
38662914
n×4
51550552
n×5
64438190
n÷2
6443819
n÷3
4295879.3333333
n÷3
3221909.5
n÷5
2577527.6
n2
166091213219044
n3
2.1405234309479E+21
n4
2.7586291108574E+28
n5
3.5552213356992E+35
2 √n
3589.9356540194
3 √n
234.45406998524
4 √n
59.91607175057
5 √n
26.426196849806
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
-12887637
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 12887638 can be divided by 8 positive divisors.
The sum of these divisors (counting 12887638) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001010011001010110
3
Ternary
220020202111221
4
Quaternary
301022121112
5
Quinary
11244401023
6
Senary
1140120554
8
Octal
61123126
10
Decimal
12887638
12
Duodecimal
439615a
16
Hexadecimal
c4a656
20
Vigesimal
40aj1i
36
Base36
7o85y
md5
63b1ae306c8696832075f1b85445ec3c
sha1
66fae37bc5737f93d6fd437ddfe030f34314dec2
sha256
bdd455a0676a291cc6539bc18191eb254fb4f9ab528b31e02e6da132f2629403
sha512
6585d71cd1aef4a90f725bbba807d24ff5de21acef187744d27a6c6bf889c3dfd5f8f152e734756153be490b18434b499f561774fb9490c347bf6e83dddb4133
ripemd-160
a0cd8b97fa7dac78c4b2528f2143a46db1e33533
Diameter
25775276
Circumference
80975417.725849
Area
5.2179093527476E+14
Volume
8.9662035806701E+21
Surface area
2.0871637410991E+15
Circumference
80975417.725849
Perimeter
51550552
Area
166091213219044
Diagonal
18225872.446555
Surface area
996547279314264
Volume
2.1405234309479E+21
Space diagonal
22322043.805555
Perimeter
38662914
Area
71919604996535
Altitude
11161021.902778
Surface area
71919604996535
Volume
2.5226310555199E+20
Height
6075290.8155183