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11387349 = 3211311197
BaseRepresentation
bin101011011100…
…000111010101
3210102112111200
4223130013111
510403343344
61044023113
7165535161
oct53340725
923375450
1011387349
116478536
123991a99
13248919c
141725ca1
15eee069
hexadc1d5

11387349 has 12 divisors (see below), whose sum is σ = 16595436. Its totient is φ = 7523712.

The previous prime is 11387347. The next prime is 11387359. The reversal of 11387349 is 94378311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1102500 + 10284849 = 1050^2 + 3207^2 .

It is not a de Polignac number, because 11387349 - 21 = 11387347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11387347) 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 11 ways as a sum of consecutive naturals, for example, 4582 + ... + 6615.

It is an arithmetic number, because the mean of its divisors is an integer number (1382953).

Almost surely, 211387349 is an apocalyptic number.

It is an amenable number.

11387349 is a deficient number, since it is larger than the sum of its proper divisors (5208087).

11387349 is a wasteful number, since it uses less digits than its factorization.

11387349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11316 (or 11313 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 11387349 is about 3374.5146317656. The cubic root of 11387349 is about 224.9784275614.

The spelling of 11387349 in words is "eleven million, three hundred eighty-seven thousand, three hundred forty-nine".

Divisors: 1 3 9 113 339 1017 11197 33591 100773 1265261 3795783 11387349