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56049513 = 3139771471
BaseRepresentation
bin1101010111001…
…1111101101001
310220110121110220
43111303331221
5103322041023
65321200253
71250261442
oct325637551
9126417426
1056049513
1129702913
1216930089
13b7c5ac0
1476302c9
154dc23e3
hex3573f69

56049513 has 16 divisors (see below), whose sum is σ = 80618496. Its totient is φ = 34433280.

The previous prime is 56049509. The next prime is 56049517. The reversal of 56049513 is 31594065.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56049509) and next prime (56049517).

It is not a de Polignac number, because 56049513 - 22 = 56049509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56049517) by changing a digit.

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, 37368 + ... + 38838.

It is an arithmetic number, because the mean of its divisors is an integer number (5038656).

Almost surely, 256049513 is an apocalyptic number.

It is an amenable number.

56049513 is a deficient number, since it is larger than the sum of its proper divisors (24568983).

56049513 is a wasteful number, since it uses less digits than its factorization.

56049513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56049513 is about 7486.6222690877. The cubic root of 56049513 is about 382.6989592461.

The spelling of 56049513 in words is "fifty-six million, forty-nine thousand, five hundred thirteen".

Divisors: 1 3 13 39 977 1471 2931 4413 12701 19123 38103 57369 1437167 4311501 18683171 56049513