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52812870 = 23511214549
BaseRepresentation
bin1100100101110…
…1110001000110
310200101011122020
43021131301012
5102010002440
65123544010
71210621245
oct311356106
9120334566
1052812870
11278a2100
121582b006
13ac31826
14702a95c
1549833d0
hex325dc46

52812870 has 48 divisors (see below), whose sum is σ = 139330800. Its totient is φ = 12802240.

The previous prime is 52812869. The next prime is 52812883. The reversal of 52812870 is 7821825.

52812870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3645 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (2902725).

Almost surely, 252812870 is an apocalyptic number.

52812870 is an abundant number, since it is smaller than the sum of its proper divisors (86517930).

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

52812870 is a wasteful number, since it uses less digits than its factorization.

52812870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14581 (or 14570 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 52812870 is about 7267.2463836036. The cubic root of 52812870 is about 375.1859699808.

The spelling of 52812870 in words is "fifty-two million, eight hundred twelve thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 121 165 242 330 363 605 726 1210 1815 3630 14549 29098 43647 72745 87294 145490 160039 218235 320078 436470 480117 800195 960234 1600390 1760429 2400585 3520858 4801170 5281287 8802145 10562574 17604290 26406435 52812870