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14287143 = 313379901
BaseRepresentation
bin110110100000…
…000100100111
3222212212021110
4312200010213
512124142033
61230120103
7232303323
oct66400447
928785243
1014287143
118079162
124950033
132c63040
141c7c983
1513c3363
hexda0127

14287143 has 16 divisors (see below), whose sum is σ = 21071456. Its totient is φ = 8553600.

The previous prime is 14287127. The next prime is 14287151. The reversal of 14287143 is 34178241.

It is not a de Polignac number, because 14287143 - 24 = 14287127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14287143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14287103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3508 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (1316966).

Almost surely, 214287143 is an apocalyptic number.

14287143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

14287143 is a deficient number, since it is larger than the sum of its proper divisors (6784313).

14287143 is a wasteful number, since it uses less digits than its factorization.

14287143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954.

The product of its digits is 5376, while the sum is 30.

The square root of 14287143 is about 3779.8337265017. The cubic root of 14287143 is about 242.6508389511.

The spelling of 14287143 in words is "fourteen million, two hundred eighty-seven thousand, one hundred forty-three".

Divisors: 1 3 13 37 39 111 481 1443 9901 29703 128713 366337 386139 1099011 4762381 14287143