12891005 is an odd 8-digits composite number following 12891004
and preceding 12891006 . In scientific notation, it is written as 1.2891005 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 10312800 positive integers (up to 12891005) that are relatively prime to 12891005.
12891005 has 4 divisors, whose sum is 15469212
The reverse of 12891005 is 50019821
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twelve million eight hundred ninety-one thousand five
Scientific notation
1.2891005 × 10^7
Engineering notation
1.2891005 × 10^6
Prime Factorization
5 × 2578201
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12891005
Product of the distinct prime numbers
The prime factorization of 12891005 is 5 × 2578201.
Since it has a total of 2 prime factors.
3 , 10 , 48 , 61 , 601 , 441 , 8435 , 4874 , 86804 , 48791 , 835254 , 443456 , 4573854 , 6368056 , 72335947 , 8161149 , 285409995 , 850993137 , 4165374311 , 8296076508
n×2
25782010
n×3
38673015
n×4
51564020
n×5
64455025
n÷2
6445502.5
n÷3
4297001.6666667
n÷3
3222751.25
n÷5
2578201
n2
166178009910025
n3
2.1422015566402E+21
n4
2.7615130977656E+28
n5
3.5598679150862E+35
2 √n
3590.4045733037
3 √n
234.47448588346
4 √n
59.919984757205
5 √n
26.4275775172
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
-12891004
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 12891005 can be divided by 4 positive divisors.
The sum of these divisors (counting 12891005) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001001011001101111101
3
Ternary
220020221010122
4
Quaternary
301023031331
5
Quinary
11300003010
6
Senary
1140144325
8
Octal
61131575
10
Decimal
12891005
12
Duodecimal
43980a5
16
Hexadecimal
c4b37d
20
Vigesimal
40b7a5
36
Base36
7oarh
md5
7790e7e4d90d2bad71281096fed33f1e
sha1
d49cdb35592fc7c8ffd25139cb9a9224278c1ba2
sha256
413251df790c26a6db09345b7b7c07b1bb32c7e61a10a2cb12e37f8e75b63e97
sha512
76c80a5a1af017a1fb034d74be2b8f2147fa22553d55003c1696cccbab9334612e7b6b8b1d642c5737dccbfc043bfd2b897de41eee9252bb2b59f64cafae38a4
ripemd-160
4281232b37d1b8f9fd40491c77fc398fd65a60fc
Diameter
25782010
Circumference
80996573.210779
Area
5.2206361512151E+14
Volume
8.9732328971326E+21
Surface area
2.088254460486E+15
Circumference
80996573.210779
Perimeter
51564020
Area
166178009910025
Diagonal
18230634.103619
Surface area
997068059460150
Volume
2.1422015566402E+21
Space diagonal
22327875.620624
Perimeter
38673015
Area
71957189066212
Altitude
11163937.810312
Surface area
71957189066212
Volume
2.5246087456144E+20
Height
6076878.0345398