Base | Representation |
---|---|
bin | 100110011000… |
… | …0111011001011 |
3 | 1101212101000212 |
4 | 1030300323023 |
5 | 20122421324 |
6 | 1555151335 |
7 | 333021425 |
oct | 114607313 |
9 | 41771025 |
10 | 20123339 |
11 | 103a4a65 |
12 | 68a554b |
13 | 4227602 |
14 | 295b815 |
15 | 1b7770e |
hex | 1330ecb |
20123339 has 2 divisors, whose sum is σ = 20123340. Its totient is φ = 20123338.
The previous prime is 20123293. The next prime is 20123347. The reversal of 20123339 is 93332102.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20123339 - 220 = 19074763 is a prime.
It is not a weakly prime, because it can be changed into another prime (20123039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061669 + 10061670.
It is an arithmetic number, because the mean of its divisors is an integer number (10061670).
Almost surely, 220123339 is an apocalyptic number.
20123339 is a deficient number, since it is larger than the sum of its proper divisors (1).
20123339 is an equidigital number, since it uses as much as digits as its factorization.
20123339 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 972, while the sum is 23.
The square root of 20123339 is about 4485.9044795894. The cubic root of 20123339 is about 271.9986078000.
The spelling of 20123339 in words is "twenty million, one hundred twenty-three thousand, three hundred thirty-nine".
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