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56507824 = 24191511231
BaseRepresentation
bin1101011110001…
…1110110110000
310221022220011101
43113203312300
5103431222244
65335054144
71254210562
oct327436660
9127286141
1056507824
112999618a
1216b11354
13b9265a9
14770d332
154e630d4
hex35e3db0

56507824 has 40 divisors (see below), whose sum is σ = 116103680. Its totient is φ = 26568000.

The previous prime is 56507821. The next prime is 56507827. The reversal of 56507824 is 42870565.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56507821) and next prime (56507827).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56507821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45289 + ... + 46519.

It is an arithmetic number, because the mean of its divisors is an integer number (2902592).

Almost surely, 256507824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56507824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58051840).

56507824 is an abundant number, since it is smaller than the sum of its proper divisors (59595856).

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

56507824 is a wasteful number, since it uses less digits than its factorization.

56507824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 56507824 is about 7517.1686159085. The cubic root of 56507824 is about 383.7392254364.

The spelling of 56507824 in words is "fifty-six million, five hundred seven thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 19 38 76 151 152 302 304 604 1208 1231 2416 2462 2869 4924 5738 9848 11476 19696 22952 23389 45904 46778 93556 185881 187112 371762 374224 743524 1487048 2974096 3531739 7063478 14126956 28253912 56507824