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12804833 = 41312313
BaseRepresentation
bin110000110110…
…001011100001
3220002112221002
4300312023201
511234223313
61134241345
7213560606
oct60661341
926075832
1012804833
117256508
124356255
132864432
1419b46ad
1511ce058
hexc362e1

12804833 has 4 divisors (see below), whose sum is σ = 13117188. Its totient is φ = 12492480.

The previous prime is 12804817. The next prime is 12804851. The reversal of 12804833 is 33840821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3972049 + 8832784 = 1993^2 + 2972^2 .

It is a cyclic number.

It is not a de Polignac number, because 12804833 - 24 = 12804817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12804796 and 12804805.

It is not an unprimeable number, because it can be changed into a prime (12804433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156116 + ... + 156197.

It is an arithmetic number, because the mean of its divisors is an integer number (3279297).

Almost surely, 212804833 is an apocalyptic number.

It is an amenable number.

12804833 is a deficient number, since it is larger than the sum of its proper divisors (312355).

12804833 is an equidigital number, since it uses as much as digits as its factorization.

12804833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312354.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12804833 is about 3578.3841325380. The cubic root of 12804833 is about 233.9508565560.

The spelling of 12804833 in words is "twelve million, eight hundred four thousand, eight hundred thirty-three".

Divisors: 1 41 312313 12804833