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12804806 = 27914629
BaseRepresentation
bin110000110110…
…001011000110
3220002112220002
4300312023012
511234223211
61134241302
7213560540
oct60661306
926075802
1012804806
117256493
124356232
132864411
1419b4690
1511ce03b
hexc362c6

12804806 has 8 divisors (see below), whose sum is σ = 21951120. Its totient is φ = 5487768.

The previous prime is 12804793. The next prime is 12804809. The reversal of 12804806 is 60840821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804809) 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, 457301 + ... + 457328.

It is an arithmetic number, because the mean of its divisors is an integer number (2743890).

Almost surely, 212804806 is an apocalyptic number.

12804806 is a deficient number, since it is larger than the sum of its proper divisors (9146314).

12804806 is an equidigital number, since it uses as much as digits as its factorization.

12804806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914638.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 12804806 is about 3578.3803598835. The cubic root of 12804806 is about 233.9506921212.

The spelling of 12804806 in words is "twelve million, eight hundred four thousand, eight hundred six".

Divisors: 1 2 7 14 914629 1829258 6402403 12804806