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56052311 = 723215137
BaseRepresentation
bin1101010111010…
…0101001010111
310220110202022112
43111310221113
5103322133221
65321221235
71250302550
oct325645127
9126422275
1056052311
1129704a27
121693181b
13b7c7163
147631327
154dc315b
hex3574a57

56052311 has 12 divisors (see below), whose sum is σ = 66970512. Its totient is φ = 45952896.

The previous prime is 56052287. The next prime is 56052313. The reversal of 56052311 is 11325065.

56052311 is nontrivially palindromic in base 6.

It is a de Polignac number, because none of the positive numbers 2k-56052311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56052313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3866 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (5580876).

Almost surely, 256052311 is an apocalyptic number.

56052311 is a deficient number, since it is larger than the sum of its proper divisors (10918201).

56052311 is a wasteful number, since it uses less digits than its factorization.

56052311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15190 (or 15167 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 56052311 is about 7486.8091334026. The cubic root of 56052311 is about 382.7053272697.

Adding to 56052311 its reverse (11325065), we get a palindrome (67377376).

The spelling of 56052311 in words is "fifty-six million, fifty-two thousand, three hundred eleven".

Divisors: 1 7 23 161 529 3703 15137 105959 348151 2437057 8007473 56052311