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57428545 = 5191394349
BaseRepresentation
bin1101101100010…
…0101001000001
311000001200011011
43123010221001
5104200203140
65410520521
71265064106
oct333045101
9130050134
1057428545
112a464a09
1217296141
13bb896b5
1478acaad
155095cea
hex36c4a41

57428545 has 16 divisors (see below), whose sum is σ = 73080000. Its totient is φ = 43201728.

The previous prime is 57428537. The next prime is 57428573. The reversal of 57428545 is 54582475.

It is a cyclic number.

It is not a de Polignac number, because 57428545 - 23 = 57428537 is a prime.

It is a super-3 number, since 3×574285453 (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57428498 and 57428507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11031 + ... + 15379.

It is an arithmetic number, because the mean of its divisors is an integer number (4567500).

Almost surely, 257428545 is an apocalyptic number.

It is an amenable number.

57428545 is a deficient number, since it is larger than the sum of its proper divisors (15651455).

57428545 is a wasteful number, since it uses less digits than its factorization.

57428545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512.

The product of its digits is 224000, while the sum is 40.

The square root of 57428545 is about 7578.1623761965. The cubic root of 57428545 is about 385.8121832309.

The spelling of 57428545 in words is "fifty-seven million, four hundred twenty-eight thousand, five hundred forty-five".

Divisors: 1 5 19 95 139 695 2641 4349 13205 21745 82631 413155 604511 3022555 11485709 57428545