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56243455 = 5311093329
BaseRepresentation
bin1101011010001…
…1010011111111
310220211110111221
43112203103333
5103344242310
65325254211
71252030042
oct326432377
9126743457
1056243455
11298255a4
1216a04367
13b863168
147680c59
154e0eada
hex35a34ff

56243455 has 16 divisors (see below), whose sum is σ = 70329600. Its totient is φ = 43130880.

The previous prime is 56243449. The next prime is 56243471. The reversal of 56243455 is 55434265.

It is not a de Polignac number, because 56243455 - 29 = 56242943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56243455.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15231 + ... + 18559.

It is an arithmetic number, because the mean of its divisors is an integer number (4395600).

Almost surely, 256243455 is an apocalyptic number.

56243455 is a deficient number, since it is larger than the sum of its proper divisors (14086145).

56243455 is a wasteful number, since it uses less digits than its factorization.

56243455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474.

The product of its digits is 72000, while the sum is 34.

The square root of 56243455 is about 7499.5636539735. The cubic root of 56243455 is about 383.1398548937.

The spelling of 56243455 in words is "fifty-six million, two hundred forty-three thousand, four hundred fifty-five".

Divisors: 1 5 31 109 155 545 3329 3379 16645 16895 103199 362861 515995 1814305 11248691 56243455