20121345 is an odd 8-digits composite number following 20121344
and preceding 20121346 . In scientific notation, it is written as 2.0121345 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 10628352 positive integers (up to 20121345) that are relatively prime to 20121345.
20121345 has 8 divisors, whose sum is 20465280
The reverse of 20121345 is 54312102
Previous prime number is 1319
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred twenty-one thousand three hundred forty-five
Scientific notation
2.0121345 × 10^7
Engineering notation
2.0121345 × 10^6
Prime Factorization
135 × 1319 × 113
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121345
Product of the distinct prime numbers
The prime factorization of 20121345 is 135 × 1319 × 113.
Since it has a total of 3 prime factors.
10 , 5 , 71 , 4 , 458 , 573 , 4801 , 7073 , 50585 , 44747 , 334540 , 553061 , 9449608 , 9581259 , 81689189 , 49583856 , 323476217 , 888616756 , 2051594833 , 5330155390
n×2
40242690
n×3
60364035
n×4
80485380
n×5
100606725
n÷2
10060672.5
n÷3
6707115
n÷3
5030336.25
n÷5
4024269
n2
404868524609025
n3
8.1464992632992E+21
n4
1.6391852221909E+29
n5
3.2982611374604E+36
2 √n
4485.6822223604
3 √n
271.98962348679
4 √n
66.9752358888
5 √n
28.888926337415
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
-20121344
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 20121345 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121345) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011100000001
3
Ternary
1101212021022000
4
Quaternary
1030300130001
5
Quinary
20122340340
6
Senary
1555134213
8
Octal
114603401
10
Decimal
20121345
12
Duodecimal
68a4369
16
Hexadecimal
1330701
20
Vigesimal
65f375
36
Base36
bz9q9
md5
3fc1f325ae7d5b52eeb2c30428f4108c
sha1
0dfdcff2b2458b9b809a3670f8f157ad19091474
sha256
0603d9591e3ee33cabebec7d88ca603d426ae0185910f52e2330bdae0c941a11
sha512
6dde6884c46d4bddd25f09ae24e331a45fc3a8760245ca7f7c35a8d78ff354a2e835d7e0c577f7c3d70541c6f9ce5028bfc404d15a80dfb77dc530fafb35f7b6
ripemd-160
892b0df1184ffaabd61f1c593b5b6f8484c09737
Diameter
40242690
Circumference
126426139.26469
Area
1.2719319825815E+15
Volume
3.4123976317407E+22
Surface area
5.0877279303258E+15
Circumference
126426139.26469
Perimeter
80485380
Area
404868524609025
Diagonal
28455878.992188
Surface area
2429211147654150
Volume
8.1464992632992E+21
Space diagonal
34851191.856622
Perimeter
60364035
Area
1.7531321375207E+14
Altitude
17425595.928311
Surface area
1.7531321375207E+14
Volume
9.6007414533501E+20
Height
9485292.997396