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57069045 = 32511247223
BaseRepresentation
bin1101100110110…
…0110111110101
310222101102000100
43121230313311
5104102202140
65355104313
71262036025
oct331546765
9128342010
1057069045
112a239900
1217142099
13ba91b87
147817a85
155024530
hex366cdf5

57069045 has 72 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 26959680.

The previous prime is 57069043. The next prime is 57069053. The reversal of 57069045 is 54096075.

It is not a de Polignac number, because 57069045 - 21 = 57069043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57069043) 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 71 ways as a sum of consecutive naturals, for example, 255804 + ... + 256026.

It is an arithmetic number, because the mean of its divisors is an integer number (1549184).

Almost surely, 257069045 is an apocalyptic number.

57069045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57069045 is a deficient number, since it is larger than the sum of its proper divisors (54472203).

57069045 is a wasteful number, since it uses less digits than its factorization.

57069045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 57069045 is about 7554.4056682177. The cubic root of 57069045 is about 385.0054420999.

The spelling of 57069045 in words is "fifty-seven million, sixty-nine thousand, forty-five".

Divisors: 1 3 5 9 11 15 33 45 47 55 99 121 141 165 223 235 363 423 495 517 605 669 705 1089 1115 1551 1815 2007 2115 2453 2585 3345 4653 5445 5687 7359 7755 10035 10481 12265 17061 22077 23265 26983 28435 31443 36795 51183 52405 80949 85305 94329 110385 115291 134915 157215 242847 255915 345873 404745 471645 576455 1037619 1214235 1268201 1729365 3804603 5188095 6341005 11413809 19023015 57069045