12105891 is an odd 8-digits composite number following 12105890
and preceding 12105892 . In scientific notation, it is written as 1.2105891 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 6822144 positive integers (up to 12105891) that are relatively prime to 12105891.
12105891 has 24 divisors, whose sum is 15864240
The reverse of 12105891 is 19850121
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twelve million one hundred five thousand eight hundred ninety-one
Scientific notation
1.2105891 × 10^7
Engineering notation
1.2105891 × 10^6
Prime Factorization
9 × 7 × 7 × 283 × 97
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1729413
Product of the distinct prime numbers
The prime factorization of 12105891 is 9 × 7 × 7 × 283 × 97.
Since it has a total of 5 prime factors.
6 , 6 , 30 , 24 , 852 , 383 , 5343 , 2086 , 17897 , 84242 , 102218 , 364804 , 5804149 , 3905760 , 83665887 , 49054503 , 509626094 , 492388871 , 6162143806 , 3896343611
n×2
24211782
n×3
36317673
n×4
48423564
n×5
60529455
n÷2
6052945.5
n÷3
4035297
n÷3
3026472.75
n÷5
2421178.2
n2
146552596903881
n3
1.7741497638853E+21
n4
2.1477663659271E+28
n5
2.600062551938E+35
2 √n
3479.352094859
3 √n
229.61429367686
4 √n
58.986033049011
5 √n
26.097526776528
1 , 7 , 9 , 49 , 63 , 97 , 283 , 441 , 679 , 873 , 1981 , 2547 , 4753 , 6111 , 13867 , 17829 , 27451 , 42777 , 124803 , 192157 , 247059 , 1345099 , 1729413 , 12105891
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12105890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12105891 can be divided by 24 positive divisors.
The sum of these divisors (counting 12105891) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
101110001011100010100011
3
Ternary
211210001011100
4
Quaternary
232023202203
5
Quinary
11044342031
6
Senary
1111245443
8
Octal
56134243
10
Decimal
12105891
12
Duodecimal
4079883
16
Hexadecimal
b8b8a3
20
Vigesimal
3fd4eb
36
Base36
77gyr
md5
b04b41107f030cfc1349e8f487edbb13
sha1
1ecc57eb9fed0c04138a5a81b7ace56bf766475a
sha256
51aee8f63cf015931a6d2b44d062ad64536b5b30a1ad2fbed0719f6151c58d53
sha512
5f22de9c901851e50aa8510a5c28d26391d0de633cca157ad62b79a363d05121ce4ae326b746180595d5edcf43aac6983ce871c7359054e5ec0a1bbea12efb1d
ripemd-160
84f4ea3b7f0059054b7433efe69427fc40a7f794
Diameter
24211782
Circumference
76063556.461518
Area
4.6040856179774E+14
Volume
7.4315411527869E+21
Surface area
1.841634247191E+15
Circumference
76063556.461518
Perimeter
48423564
Area
146552596903881
Diagonal
17120315.23681
Surface area
879315581423286
Volume
1.7741497638853E+21
Space diagonal
20968018.282891
Perimeter
36317673
Area
63459135954671
Altitude
10484009.141445
Surface area
63459135954671
Volume
2.0908555481397E+20
Height
5706771.7456035