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52065585 = 34511132931
BaseRepresentation
bin1100011010011…
…1010100110001
310121222012120000
43012213110301
5101312044320
65055540213
71201356465
oct306472461
9117865500
1052065585
1127431710
121552a669
13aa2c650
146cb44a5
154886c90
hex31a7531

52065585 has 160 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 21772800.

The previous prime is 52065581. The next prime is 52065593. The reversal of 52065585 is 58556025.

52065585 is a `hidden beast` number, since 520 + 6 + 55 + 85 = 666.

52065585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52065585 - 22 = 52065581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52065581) 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 159 ways as a sum of consecutive naturals, for example, 1679520 + ... + 1679550.

It is an arithmetic number, because the mean of its divisors is an integer number (731808).

Almost surely, 252065585 is an apocalyptic number.

52065585 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52065585 is an abundant number, since it is smaller than the sum of its proper divisors (65023695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52065585 is a wasteful number, since it uses less digits than its factorization.

52065585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 52065585 is about 7215.6486194936. The cubic root of 52065585 is about 373.4079707456.

It can be divided in two parts, 52065 and 585, that added together give a triangular number (52650 = T324).

The spelling of 52065585 in words is "fifty-two million, sixty-five thousand, five hundred eighty-five".

Divisors: 1 3 5 9 11 13 15 27 29 31 33 39 45 55 65 81 87 93 99 117 135 143 145 155 165 195 261 279 297 319 341 351 377 403 405 429 435 465 495 585 715 783 837 891 899 957 1023 1053 1131 1209 1287 1305 1395 1485 1595 1705 1755 1885 2015 2145 2349 2511 2697 2871 3069 3393 3627 3861 3915 4147 4185 4433 4455 4495 4785 5115 5265 5655 6045 6435 8091 8613 9207 9889 10179 10881 11583 11687 11745 12441 12555 13299 13485 14355 15345 16965 18135 19305 20735 22165 24273 25839 27621 29667 30537 32643 35061 37323 39897 40455 43065 46035 49445 50895 54405 57915 58435 62205 66495 72819 89001 105183 111969 119691 121365 128557 129195 138105 148335 152685 163215 175305 186615 199485 267003 315549 335907 359073 364095 385671 445005 525915 559845 598455 642785 801009 946647 1157013 1335015 1577745 1679535 1795365 1928355 3471039 4005045 4733235 5785065 10413117 17355195 52065585