Base | Representation |
---|---|
bin | 110001100011… |
… | …111110100111 |
3 | 220110002020212 |
4 | 301203332213 |
5 | 11311224143 |
6 | 1142250035 |
7 | 215301533 |
oct | 61437647 |
9 | 26402225 |
10 | 12992423 |
11 | 7374444 |
12 | 442691b |
13 | 28cb932 |
14 | 1a22bc3 |
15 | 1219918 |
hex | c63fa7 |
12992423 has 2 divisors, whose sum is σ = 12992424. Its totient is φ = 12992422.
The previous prime is 12992417. The next prime is 12992459. The reversal of 12992423 is 32429921.
It is a weak prime.
It is an emirp because it is prime and its reverse (32429921) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12992423 - 214 = 12976039 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12992423.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12992123) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6496211 + 6496212.
It is an arithmetic number, because the mean of its divisors is an integer number (6496212).
Almost surely, 212992423 is an apocalyptic number.
12992423 is a deficient number, since it is larger than the sum of its proper divisors (1).
12992423 is an equidigital number, since it uses as much as digits as its factorization.
12992423 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 7776, while the sum is 32.
The square root of 12992423 is about 3604.5003814676. The cubic root of 12992423 is about 235.0877776813.
The spelling of 12992423 in words is "twelve million, nine hundred ninety-two thousand, four hundred twenty-three".
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