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14287331 = 83917029
BaseRepresentation
bin110110100000…
…000111100011
3222212212112102
4312200013203
512124143311
61230121015
7232304012
oct66400743
928785472
1014287331
118079313
12495016b
132c63156
141c7ca79
1513c343b
hexda01e3

14287331 has 4 divisors (see below), whose sum is σ = 14305200. Its totient is φ = 14269464.

The previous prime is 14287313. The next prime is 14287337. The reversal of 14287331 is 13378241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14287331 - 26 = 14287267 is a prime.

It is a super-2 number, since 2×142873312 = 408255654207122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14287294 and 14287303.

It is not an unprimeable number, because it can be changed into a prime (14287337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7676 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (3576300).

Almost surely, 214287331 is an apocalyptic number.

14287331 is a deficient number, since it is larger than the sum of its proper divisors (17869).

14287331 is an equidigital number, since it uses as much as digits as its factorization.

14287331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17868.

The product of its digits is 4032, while the sum is 29.

The square root of 14287331 is about 3779.8585952387. The cubic root of 14287331 is about 242.6519032683.

The spelling of 14287331 in words is "fourteen million, two hundred eighty-seven thousand, three hundred thirty-one".

Divisors: 1 839 17029 14287331