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56743 = 179317
BaseRepresentation
bin1101110110100111
32212211121
431312213
53303433
61114411
7324301
oct156647
985747
1056743
11396a5
1228a07
131ca9b
1416971
1511c2d
hexdda7

56743 has 4 divisors (see below), whose sum is σ = 57240. Its totient is φ = 56248.

The previous prime is 56737. The next prime is 56747. The reversal of 56743 is 34765.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56743 - 25 = 56711 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56747) 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, 21 + ... + 337.

It is an arithmetic number, because the mean of its divisors is an integer number (14310).

256743 is an apocalyptic number.

56743 is a deficient number, since it is larger than the sum of its proper divisors (497).

56743 is a wasteful number, since it uses less digits than its factorization.

56743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 2520, while the sum is 25.

The square root of 56743 is about 238.2078923965. The cubic root of 56743 is about 38.4270841189.

The spelling of 56743 in words is "fifty-six thousand, seven hundred forty-three".

Divisors: 1 179 317 56743