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57456685 = 511131729163
BaseRepresentation
bin1101101100101…
…1100000101101
311000010002202101
43123023200231
5104202103220
65411255101
71265242126
oct333134055
9130102671
1057456685
112a484070
12172aa491
13bb99450
1478b904d
15509e30a
hex36cb82d

57456685 has 64 divisors (see below), whose sum is σ = 89268480. Its totient is φ = 34836480.

The previous prime is 57456683. The next prime is 57456697. The reversal of 57456685 is 58665475.

It is not a de Polignac number, because 57456685 - 21 = 57456683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57456683) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 352414 + ... + 352576.

It is an arithmetic number, because the mean of its divisors is an integer number (1394820).

Almost surely, 257456685 is an apocalyptic number.

57456685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57456685 is a deficient number, since it is larger than the sum of its proper divisors (31811795).

57456685 is a wasteful number, since it uses less digits than its factorization.

57456685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238.

The product of its digits is 1008000, while the sum is 46.

The square root of 57456685 is about 7580.0187994490. The cubic root of 57456685 is about 385.8751889600.

The spelling of 57456685 in words is "fifty-seven million, four hundred fifty-six thousand, six hundred eighty-five".

Divisors: 1 5 11 13 17 29 55 65 85 143 145 163 187 221 319 377 493 715 815 935 1105 1595 1793 1885 2119 2431 2465 2771 4147 4727 5423 6409 8965 10595 12155 13855 20735 23309 23635 27115 30481 32045 36023 51997 61451 70499 80359 116545 152405 180115 259985 307255 352495 396253 401795 675961 883949 1044667 1981265 3379805 4419745 5223335 11491337 57456685