Base | Representation |
---|---|
bin | 10010111011110001… |
… | …100110101010101101 |
3 | 1221110211212202222022 |
4 | 102323301212222231 |
5 | 313114013241023 |
6 | 13201202555525 |
7 | 1316541644066 |
oct | 227361465255 |
9 | 57424782868 |
10 | 20330212013 |
11 | 8692969211 |
12 | 3b34668ba5 |
13 | 1bbcc23067 |
14 | dac0c156d |
15 | 7dec467c8 |
hex | 4bbc66aad |
20330212013 has 2 divisors, whose sum is σ = 20330212014. Its totient is φ = 20330212012.
The previous prime is 20330212009. The next prime is 20330212033. The reversal of 20330212013 is 31021203302.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 14529409444 + 5800802569 = 120538^2 + 76163^2 .
It is a cyclic number.
It is not a de Polignac number, because 20330212013 - 22 = 20330212009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20330211982 and 20330212000.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20330212033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165106006 + 10165106007.
It is an arithmetic number, because the mean of its divisors is an integer number (10165106007).
Almost surely, 220330212013 is an apocalyptic number.
It is an amenable number.
20330212013 is a deficient number, since it is larger than the sum of its proper divisors (1).
20330212013 is an equidigital number, since it uses as much as digits as its factorization.
20330212013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 20330212013 its reverse (31021203302), we get a palindrome (51351415315).
It can be divided in two parts, 20 and 330212013, that added together give a palindrome (330212033).
The spelling of 20330212013 in words is "twenty billion, three hundred thirty million, two hundred twelve thousand, thirteen".
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