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52012305 = 3251155829
BaseRepresentation
bin1100011001101…
…0010100010001
310121212111110200
43012122110101
5101303343210
65054445413
71201045242
oct306322421
9117774420
1052012305
11273a5684
1215503869
13aa11317
146c9ccc9
1548760c0
hex319a511

52012305 has 12 divisors (see below), whose sum is σ = 90154740. Its totient is φ = 27739872.

The previous prime is 52012249. The next prime is 52012349. The reversal of 52012305 is 50321025.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13373649 + 38638656 = 3657^2 + 6216^2 .

It is not a de Polignac number, because 52012305 - 29 = 52011793 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577870 + ... + 577959.

It is an arithmetic number, because the mean of its divisors is an integer number (7512895).

Almost surely, 252012305 is an apocalyptic number.

It is an amenable number.

52012305 is a deficient number, since it is larger than the sum of its proper divisors (38142435).

52012305 is a wasteful number, since it uses less digits than its factorization.

52012305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155840 (or 1155837 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 52012305 is about 7211.9556986992. The cubic root of 52012305 is about 373.2805547378.

The spelling of 52012305 in words is "fifty-two million, twelve thousand, three hundred five".

Divisors: 1 3 5 9 15 45 1155829 3467487 5779145 10402461 17337435 52012305