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52006565 = 5132343809
BaseRepresentation
bin1100011001100…
…0111010100101
310121212012121002
43012120322211
5101303202230
65054403045
71201022432
oct306307245
9117765532
1052006565
11273a1336
1215500485
13aa0b820
146c9ab89
154874545
hex3198ea5

52006565 has 32 divisors (see below), whose sum is σ = 71850240. Its totient is φ = 35836416.

The previous prime is 52006547. The next prime is 52006567. The reversal of 52006565 is 56560025.

52006565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52006565 - 224 = 35229349 is a prime.

52006565 is a modest number, since divided by 6565 gives 5200 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52006567) 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 31 ways as a sum of consecutive naturals, for example, 63881 + ... + 64689.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 252006565 is an apocalyptic number.

It is an amenable number.

52006565 is a deficient number, since it is larger than the sum of its proper divisors (19843675).

52006565 is a wasteful number, since it uses less digits than its factorization.

52006565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 52006565 is about 7211.5577374101. The cubic root of 52006565 is about 373.2668226719.

The spelling of 52006565 in words is "fifty-two million, six thousand, five hundred sixty-five".

Divisors: 1 5 13 23 43 65 115 215 299 559 809 989 1495 2795 4045 4945 10517 12857 18607 34787 52585 64285 93035 173935 241891 452231 800101 1209455 2261155 4000505 10401313 52006565