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57706028 = 22671971093
BaseRepresentation
bin1101110000100…
…0011000101100
311000120202210022
43130020120230
5104233043103
65420501312
71300331102
oct334103054
9130522708
1057706028
112a634436
12173aa838
13bc55aa3
147941c72
1550ed138
hex370862c

57706028 has 24 divisors (see below), whose sum is σ = 103107312. Its totient is φ = 28252224.

The previous prime is 57706013. The next prime is 57706039. The reversal of 57706028 is 82060775.

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 7 ways as a sum of consecutive naturals, for example, 52250 + ... + 53342.

It is an arithmetic number, because the mean of its divisors is an integer number (4296138).

Almost surely, 257706028 is an apocalyptic number.

It is an amenable number.

57706028 is a deficient number, since it is larger than the sum of its proper divisors (45401284).

57706028 is a wasteful number, since it uses less digits than its factorization.

57706028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 57706028 is about 7596.4483806579. The cubic root of 57706028 is about 386.4325736578.

The spelling of 57706028 in words is "fifty-seven million, seven hundred six thousand, twenty-eight".

Divisors: 1 2 4 67 134 197 268 394 788 1093 2186 4372 13199 26398 52796 73231 146462 215321 292924 430642 861284 14426507 28853014 57706028