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BaseRepresentation
bin110000001110…
…101111010011
3212210100022202
4300032233103
511214041113
61130553415
7212315612
oct60165723
925710282
1012643283
1171560a4
12429886b
132808a43
141971879
15119b258
hexc0ebd3

12643283 has 2 divisors, whose sum is σ = 12643284. Its totient is φ = 12643282.

The previous prime is 12643273. The next prime is 12643313. The reversal of 12643283 is 38234621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12643283 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12643273) 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, 6321641 + 6321642.

It is an arithmetic number, because the mean of its divisors is an integer number (6321642).

Almost surely, 212643283 is an apocalyptic number.

12643283 is a deficient number, since it is larger than the sum of its proper divisors (1).

12643283 is an equidigital number, since it uses as much as digits as its factorization.

12643283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 12643283 is about 3555.7394448975. The cubic root of 12643283 is about 232.9628226340.

The spelling of 12643283 in words is "twelve million, six hundred forty-three thousand, two hundred eighty-three".