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56662605143 = 546731036391
BaseRepresentation
bin110100110001010110…
…101011110101010111
312102020220200120200022
4310301112223311113
51412021111331033
642010324135355
74044103124354
oct646126536527
9172226616608
1056662605143
11220376219a1
12ab9423755b
1354601b4031
142a5754162b
151719765098
hexd315abd57

56662605143 has 4 divisors (see below), whose sum is σ = 56663696208. Its totient is φ = 56661514080.

The previous prime is 56662605137. The next prime is 56662605221. The reversal of 56662605143 is 34150626665.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56662605143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56662605094 and 56662605103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56662605113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463523 + ... + 572868.

It is an arithmetic number, because the mean of its divisors is an integer number (14165924052).

Almost surely, 256662605143 is an apocalyptic number.

56662605143 is a deficient number, since it is larger than the sum of its proper divisors (1091065).

56662605143 is a wasteful number, since it uses less digits than its factorization.

56662605143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091064.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 56662605143 in words is "fifty-six billion, six hundred sixty-two million, six hundred five thousand, one hundred forty-three".

Divisors: 1 54673 1036391 56662605143