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57112461 = 3271947713
BaseRepresentation
bin1101100111011…
…1011110001101
310222110121120100
43121313132031
5104110044321
65400041313
71262306430
oct331673615
9128417510
1057112461
112a26948a
1217163239
13baa8873
147829817
155032326
hex367778d

57112461 has 24 divisors (see below), whose sum is σ = 99245120. Its totient is φ = 30917376.

The previous prime is 57112453. The next prime is 57112481. The reversal of 57112461 is 16421175.

It is a happy number.

It is not a de Polignac number, because 57112461 - 23 = 57112453 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57112481) 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 23 ways as a sum of consecutive naturals, for example, 22660 + ... + 25053.

Almost surely, 257112461 is an apocalyptic number.

It is an amenable number.

57112461 is a deficient number, since it is larger than the sum of its proper divisors (42132659).

57112461 is a wasteful number, since it uses less digits than its factorization.

57112461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47745 (or 47742 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 57112461 is about 7557.2786768783. The cubic root of 57112461 is about 385.1030499435.

The spelling of 57112461 in words is "fifty-seven million, one hundred twelve thousand, four hundred sixty-one".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 47713 143139 333991 429417 906547 1001973 2719641 3005919 6345829 8158923 19037487 57112461