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14409387 = 331731393
BaseRepresentation
bin110110111101…
…111010101011
31000010001222000
4312331322223
512142100022
61232502043
7233322606
oct66757253
930101860
1014409387
118151a93
1249aa923
132ca6885
141cb133d
1513e96ac
hexdbdeab

14409387 has 16 divisors (see below), whose sum is σ = 22603680. Its totient is φ = 9040896.

The previous prime is 14409383. The next prime is 14409403. The reversal of 14409387 is 78390441.

It is a happy number.

It is not a de Polignac number, because 14409387 - 22 = 14409383 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (14409383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15238 + ... + 16155.

It is an arithmetic number, because the mean of its divisors is an integer number (1412730).

Almost surely, 214409387 is an apocalyptic number.

14409387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

14409387 is a deficient number, since it is larger than the sum of its proper divisors (8194293).

14409387 is a wasteful number, since it uses less digits than its factorization.

14409387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31419 (or 31413 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 14409387 is about 3795.9698365503. The cubic root of 14409387 is about 243.3409328124.

The spelling of 14409387 in words is "fourteen million, four hundred nine thousand, three hundred eighty-seven".

Divisors: 1 3 9 17 27 51 153 459 31393 94179 282537 533681 847611 1601043 4803129 14409387