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14642287 = 111778301
BaseRepresentation
bin110111110110…
…110001101111
31000112220102221
4313312301233
512222023122
61241500211
7235312612
oct67666157
930486387
1014642287
1182a0a70
124aa1667
13305889a
141d32179
1514436c7
hexdf6c6f

14642287 has 8 divisors (see below), whose sum is σ = 16913232. Its totient is φ = 12528000.

The previous prime is 14642281. The next prime is 14642347. The reversal of 14642287 is 78224641.

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 14642287 - 215 = 14609519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14642281) 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 7 ways as a sum of consecutive naturals, for example, 38964 + ... + 39337.

It is an arithmetic number, because the mean of its divisors is an integer number (2114154).

Almost surely, 214642287 is an apocalyptic number.

14642287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

14642287 is a deficient number, since it is larger than the sum of its proper divisors (2270945).

14642287 is a wasteful number, since it uses less digits than its factorization.

14642287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78329.

The product of its digits is 21504, while the sum is 34.

The square root of 14642287 is about 3826.5241407836. The cubic root of 14642287 is about 244.6449779529.

The spelling of 14642287 in words is "fourteen million, six hundred forty-two thousand, two hundred eighty-seven".

Divisors: 1 11 17 187 78301 861311 1331117 14642287