20121243 is an odd 8-digits composite number following 20121242
and preceding 20121244 . In scientific notation, it is written as 2.0121243 × 10^7.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 13288584 positive integers (up to 20121243) that are relatively prime to 20121243.
20121243 has 4 divisors, whose sum is 20184248
The reverse of 20121243 is 34212102
Previous prime number is 321
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred twenty-one thousand two hundred forty-three
Scientific notation
2.0121243 × 10^7
Engineering notation
2.0121243 × 10^6
Prime Factorization
321 × 62683
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121243
Product of the distinct prime numbers
The prime factorization of 20121243 is 321 × 62683.
Since it has a total of 2 prime factors.
5 , 7 , 25 , 6 , 933 , 4 , 4024 , 3189 , 13032 , 69771 , 527081 , 688041 , 632337 , 7949408 , 93923082 , 1750554 , 144280929 , 150445520 , 8971112212 , 7785763476
n×2
40242486
n×3
60363729
n×4
80484972
n×5
100606215
n÷2
10060621.5
n÷3
6707081
n÷3
5030310.75
n÷5
4024248.6
n2
404864419865049
n3
8.1463753741587E+21
n4
1.6391519847266E+29
n5
3.2981775398617E+36
2 √n
4485.670852838
3 √n
271.98916389213
4 √n
66.975151010192
5 √n
28.888897048355
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121242
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121243 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121243) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011010011011
3
Ternary
1101212021011020
4
Quaternary
1030300122123
5
Quinary
20122334433
6
Senary
1555133523
8
Octal
114603233
10
Decimal
20121243
12
Duodecimal
68a42a3
16
Hexadecimal
133069b
20
Vigesimal
65f323
36
Base36
bz9nf
md5
4282173920134912fde734328e982dfb
sha1
e2e7f427a7d2c457a2c7506dd4957197c22f64bb
sha256
ac13ff0a121b9cab7785b7af9397dff928b5f908660946dc44a35dd4a42ca05a
sha512
02cca6c8ef1b2cc9fe3be6f931f74b9bd9dfd558c149267ddf4b91c23ddf6296726fc4062c4af40ba5f1a0cb81d0fb7e5aa9f77505d4cbe9a72ed94022f401c3
ripemd-160
0cbfb2ead7fe8ee8b7850e078f5091c41784acd8
Diameter
40242486
Circumference
126425498.37979
Area
1.2719190871479E+15
Volume
3.4123457371789E+22
Surface area
5.0876763485917E+15
Circumference
126425498.37979
Perimeter
80484972
Area
404864419865049
Diagonal
28455734.742405
Surface area
2429186519190294
Volume
8.1463753741587E+21
Space diagonal
34851015.18744
Perimeter
60363729
Area
1.7531143634579E+14
Altitude
17425507.59372
Surface area
1.7531143634579E+14
Volume
9.6005954485978E+20
Height
9485244.9141349