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12764087 = 78212221
BaseRepresentation
bin110000101100…
…001110110111
3220000111000222
4300230032313
511231422322
61133324555
7213331040
oct60541667
926014028
1012764087
117228936
12433675b
13284ba1b
1419a38c7
1511c1e42
hexc2c3b7

12764087 has 8 divisors (see below), whose sum is σ = 14611872. Its totient is φ = 10922400.

The previous prime is 12764071. The next prime is 12764099. The reversal of 12764087 is 78046721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12764087 - 24 = 12764071 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12764027) 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 in 7 ways as a sum of consecutive naturals, for example, 4637 + ... + 6857.

It is an arithmetic number, because the mean of its divisors is an integer number (1826484).

Almost surely, 212764087 is an apocalyptic number.

12764087 is a deficient number, since it is larger than the sum of its proper divisors (1847785).

12764087 is an equidigital number, since it uses as much as digits as its factorization.

12764087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 12764087 is about 3572.6862442705. The cubic root of 12764087 is about 233.7024427829.

The spelling of 12764087 in words is "twelve million, seven hundred sixty-four thousand, eighty-seven".

Divisors: 1 7 821 2221 5747 15547 1823441 12764087