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12311049 = 323672663
BaseRepresentation
bin101110111101…
…101000001001
3212011110120210
4232331220021
511122423144
61115511333
7206433162
oct56755011
925143523
1012311049
116a49523
124158549
13272075a
1418c6769
151132ab9
hexbbda09

12311049 has 16 divisors (see below), whose sum is σ = 17390592. Its totient is φ = 7730448.

The previous prime is 12311027. The next prime is 12311053. The reversal of 12311049 is 94011321.

It is not a de Polignac number, because 12311049 - 25 = 12311017 is a prime.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (12311059) 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 15 ways as a sum of consecutive naturals, for example, 3292 + ... + 5954.

It is an arithmetic number, because the mean of its divisors is an integer number (1086912).

Almost surely, 212311049 is an apocalyptic number.

It is an amenable number.

12311049 is a deficient number, since it is larger than the sum of its proper divisors (5079543).

12311049 is a wasteful number, since it uses less digits than its factorization.

12311049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 12311049 is about 3508.7104468736. The cubic root of 12311049 is about 230.9041224269.

The spelling of 12311049 in words is "twelve million, three hundred eleven thousand, forty-nine".

Divisors: 1 3 23 67 69 201 1541 2663 4623 7989 61249 178421 183747 535263 4103683 12311049