12889905 is an odd 8-digits composite number following 12889904
and preceding 12889906 . In scientific notation, it is written as 1.2889905 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 5892480 positive integers (up to 12889905) that are relatively prime to 12889905.
12889905 has 8 divisors, whose sum is 17677728
The reverse of 12889905 is 50998821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twelve million eight hundred eighty-nine thousand nine hundred five
Scientific notation
1.2889905 × 10^7
Engineering notation
1.2889905 × 10^6
Prime Factorization
35 × 3 × 122761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12889905
Product of the distinct prime numbers
The prime factorization of 12889905 is 35 × 3 × 122761.
Since it has a total of 3 prime factors.
2 , 3 , 97 , 72 , 436 , 173 , 5658 , 2326 , 52032 , 10873 , 923237 , 897633 , 7807899 , 4688826 , 6799269 , 21818798 , 555805305 , 46710686 , 2583056044 , 7486053184
n×2
25779810
n×3
38669715
n×4
51559620
n×5
64449525
n÷2
6444952.5
n÷3
4296635
n÷3
3222476.25
n÷5
2577981
n2
166149650909025
n3
2.1416532160005E+21
n4
2.7605706497191E+28
n5
3.5583493420667E+35
2 √n
3590.2513839563
3 √n
234.46781639387
4 √n
59.918706460973
5 √n
26.427126484444
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
-12889904
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 12889905 can be divided by 8 positive divisors.
The sum of these divisors (counting 12889905) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001010111100110001
3
Ternary
220020212121220
4
Quaternary
301022330301
5
Quinary
11244434110
6
Senary
1140135253
8
Octal
61127461
10
Decimal
12889905
12
Duodecimal
4397529
16
Hexadecimal
c4af31
20
Vigesimal
40b4f5
36
Base36
7o9wx
md5
f1880e0fada96918be7006f0fa00b2fd
sha1
e409f4ebd3458ab815ab5eef6a36cba5cf340132
sha256
c65d50b4780098647a904451113dc99e4602d43e0750ea32b1d1fe994844f893
sha512
3ef824625e977b4a72be8528bb409ebae333ed5e65b140004c119128ce8903053bce4ce37221fdc96a9e0f9725eaa59d68bc7f50fc74a12d35d8e951dbdbd8c7
ripemd-160
2537cd8bb67ce538dc08120dd50afd78d515845c
Diameter
25779810
Circumference
80989661.706941
Area
5.219745226923E+14
Volume
8.9709360132321E+21
Surface area
2.0878980907692E+15
Circumference
80989661.706941
Perimeter
51559620
Area
166149650909025
Diagonal
18229078.468701
Surface area
996897905454150
Volume
2.1416532160005E+21
Space diagonal
22325970.364736
Perimeter
38669715
Area
71944909258566
Altitude
11162985.182368
Surface area
71944909258566
Volume
2.5239625199732E+20
Height
6076359.4895669