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56307852438 = 23171595934591
BaseRepresentation
bin110100011100001101…
…011010010010010110
312101100012011021110020
4310130031122102112
51410304302234223
641511212410010
74032234564045
oct643415322226
9171305137406
1056307852438
1121975350a42
12aab5476906
1354048557a6
142a2239855c
1516e853d1e3
hexd1c35a496

56307852438 has 32 divisors (see below), whose sum is σ = 119251077120. Its totient is φ = 17663591040.

The previous prime is 56307852409. The next prime is 56307852449. The reversal of 56307852438 is 83425870365.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 1610523 + ... + 1645113.

It is an arithmetic number, because the mean of its divisors is an integer number (3726596160).

Almost surely, 256307852438 is an apocalyptic number.

56307852438 is an abundant number, since it is smaller than the sum of its proper divisors (62943224682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56307852438 is a wasteful number, since it uses less digits than its factorization.

56307852438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50572.

The product of its (nonzero) digits is 4838400, while the sum is 51.

It can be divided in two parts, 563078 and 52438, that added together give a palindrome (615516).

The spelling of 56307852438 in words is "fifty-six billion, three hundred seven million, eight hundred fifty-two thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 17 34 51 102 15959 31918 34591 47877 69182 95754 103773 207546 271303 542606 588047 813909 1176094 1627818 1764141 3528282 552037769 1104075538 1656113307 3312226614 9384642073 18769284146 28153926219 56307852438