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14288761 = 85716673
BaseRepresentation
bin110110100000…
…011101111001
3222212221111101
4312200131321
512124220021
61230131401
7232311124
oct66403571
928787441
1014288761
11807a3a3
124950b61
132c639b6
141c7d3bb
1513c3a91
hexda0779

14288761 has 4 divisors (see below), whose sum is σ = 14306292. Its totient is φ = 14271232.

The previous prime is 14288759. The next prime is 14288767. The reversal of 14288761 is 16788241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13278736 + 1010025 = 3644^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 14288761 - 21 = 14288759 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 14288761.

It is not an unprimeable number, because it can be changed into a prime (14288767) 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 3 ways as a sum of consecutive naturals, for example, 7480 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (3576573).

Almost surely, 214288761 is an apocalyptic number.

It is an amenable number.

14288761 is a deficient number, since it is larger than the sum of its proper divisors (17531).

14288761 is an equidigital number, since it uses as much as digits as its factorization.

14288761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17530.

The product of its digits is 21504, while the sum is 37.

The square root of 14288761 is about 3780.0477510211. The cubic root of 14288761 is about 242.6599985673.

The spelling of 14288761 in words is "fourteen million, two hundred eighty-eight thousand, seven hundred sixty-one".

Divisors: 1 857 16673 14288761