12131805 is an odd 8-digits composite number following 12131804
and preceding 12131806 . In scientific notation, it is written as 1.2131805 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 5414976 positive integers (up to 12131805) that are relatively prime to 12131805.
12131805 has 16 divisors, whose sum is 15611904
The reverse of 12131805 is 50813121
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twelve million one hundred thirty-one thousand eight hundred five
Scientific notation
1.2131805 × 10^7
Engineering notation
1.2131805 × 10^6
Prime Factorization
5 × 21 × 43 × 2687
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12131805
Product of the distinct prime numbers
The prime factorization of 12131805 is 5 × 21 × 43 × 2687.
Since it has a total of 4 prime factors.
1 , 7 , 46 , 20 , 814 , 519 , 2245 , 8874 , 39743 , 68070 , 400133 , 241866 , 1942084 , 5582606 , 48814895 , 87880765 , 180887599 , 291385506 , 3449223997 , 371867884
n×2
24263610
n×3
36395415
n×4
48527220
n×5
60659025
n÷2
6065902.5
n÷3
4043935
n÷3
3032951.25
n÷5
2426361
n2
147180692558025
n3
1.7855674618789E+21
n4
2.166215626186E+28
n5
2.6280105564841E+35
2 √n
3483.0740732864
3 √n
229.77801518356
4 √n
59.017574274841
5 √n
26.108690151136
1 , 5 , 21 , 43 , 105 , 215 , 903 , 2687 , 4515 , 13435 , 56427 , 115541 , 282135 , 577705 , 2426361 , 12131805
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12131804
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12131805 can be divided by 16 positive divisors.
The sum of these divisors (counting 12131805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101110010001110111011101
3
Ternary
211211100201010
4
Quaternary
232101313131
5
Quinary
11101204210
6
Senary
1112005433
8
Octal
56216735
10
Decimal
12131805
12
Duodecimal
4090879
16
Hexadecimal
b91ddd
20
Vigesimal
3fg9a5
36
Base36
780yl
md5
6a5043826bd8fc346cb3866ea245485c
sha1
3bf844e95d290078095a6d3cb07f9ba882c73e7d
sha256
34001f7851f6891378bf79bd5ac968e1cf59d5489ac2b6a93ce554519bb9f99f
sha512
62a1b71b222c6183a975b4642ca6bbcec260e1c1025102c12bbb83aad6971ab7ee033aecd4295f4789e2c44eb5c5dd15a41361a08c453a74591419e02c3dd99c
ripemd-160
5866dd668e02b674ca48782dbca0527c47137a23
Diameter
24263610
Circumference
76226378.925568
Area
4.6238178249055E+14
Volume
7.4793674943037E+21
Surface area
1.8495271299622E+15
Circumference
76226378.925568
Perimeter
48527220
Area
147180692558025
Diagonal
17156963.167066
Surface area
883084155348150
Volume
1.7855674618789E+21
Space diagonal
21012902.647518
Perimeter
36395415
Area
63731109350918
Altitude
10506451.323759
Surface area
63731109350918
Volume
2.1043114342677E+20
Height
5718987.7223552