20121105 is an odd 8-digits composite number following 20121104
and preceding 20121106 . In scientific notation, it is written as 2.0121105 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 10570560 positive integers (up to 20121105) that are relatively prime to 20121105.
20121105 has 8 divisors, whose sum is 21783936
The reverse of 20121105 is 50112102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty million one hundred twenty-one thousand one hundred five
Scientific notation
2.0121105 × 10^7
Engineering notation
2.0121105 × 10^6
Prime Factorization
15 × 67 × 20021
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121105
Product of the distinct prime numbers
The prime factorization of 20121105 is 15 × 67 × 20021.
Since it has a total of 3 prime factors.
4 , 9 , 82 , 46 , 632 , 541 , 5278 , 7120 , 30935 , 34602 , 998198 , 762710 , 8324257 , 5648574 , 292586 , 59008011 , 441140420 , 530914308 , 5056479380 , 5916473050
n×2
40242210
n×3
60363315
n×4
80484420
n×5
100605525
n÷2
10060552.5
n÷3
6707035
n÷3
5030276.25
n÷5
4024221
n2
404858866421025
n3
8.1462077614384E+21
n4
1.6391070171972E+29
n5
3.2980644399261E+36
2 √n
4485.655470497
3 √n
271.98854208511
4 √n
66.975036173914
5 √n
28.88885742179
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
-20121104
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 20121105 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121105) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011000010001
3
Ternary
1101212020222010
4
Quaternary
1030300120101
5
Quinary
20122333410
6
Senary
1555133133
8
Octal
114603021
10
Decimal
20121105
12
Duodecimal
68a41a9
16
Hexadecimal
1330611
20
Vigesimal
65f2f5
36
Base36
bz9jl
md5
b688e1583727654d6797be764f420228
sha1
51444441f079ca9ae1db0df2bd4c3af0c8d7820b
sha256
8543f7c27cf97f73d49fd6667175035f4f38c38053fcbc51bbc2c6951d0c9ea8
sha512
d8ad1d83bcc0944fdecca4abb8a6e98d310ab4f0d0a38c71d500fff588b23c92bd47a102122ad0f6da1b58a67cd4c218f84de69347a20356f5cd1a9d4a45aa07
ripemd-160
9fc43a4a0d198ad8ff141391ff9426b2b9b412dd
Diameter
40242210
Circumference
126424631.30022
Area
1.271901640489E+15
Volume
3.4122755277268E+22
Surface area
5.0876065619559E+15
Circumference
126424631.30022
Perimeter
80484420
Area
404858866421025
Diagonal
28455539.580933
Surface area
2429153198526150
Volume
8.1462077614384E+21
Space diagonal
34850776.164428
Perimeter
60363315
Area
1.7530903163399E+14
Altitude
17425388.082214
Surface area
1.7530903163399E+14
Volume
9.6003979151127E+20
Height
9485179.860311