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57051437 = 107533191
BaseRepresentation
bin1101100110100…
…0100100101101
310222100111212012
43121220210231
5104101121222
65354451005
71261633502
oct331504455
9128314765
1057051437
112a227653
1217133a65
13ba86b61
1478114a9
15501e1e2
hex366892d

57051437 has 4 divisors (see below), whose sum is σ = 57584736. Its totient is φ = 56518140.

The previous prime is 57051419. The next prime is 57051487. The reversal of 57051437 is 73415075.

57051437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57051437 - 214 = 57035053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57051487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266489 + ... + 266702.

It is an arithmetic number, because the mean of its divisors is an integer number (14396184).

Almost surely, 257051437 is an apocalyptic number.

It is an amenable number.

57051437 is a deficient number, since it is larger than the sum of its proper divisors (533299).

57051437 is a wasteful number, since it uses less digits than its factorization.

57051437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533298.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 57051437 is about 7553.2401656508. The cubic root of 57051437 is about 384.9658416875.

The spelling of 57051437 in words is "fifty-seven million, fifty-one thousand, four hundred thirty-seven".

Divisors: 1 107 533191 57051437