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53012305 = 537286553
BaseRepresentation
bin1100101000111…
…0011101010001
310200202022012201
43022032131101
5102032343210
65132123201
71212411553
oct312163521
9120668181
1053012305
1127a18a25
1215906501
13aca1538
14707d4d3
1549c253a
hex328e751

53012305 has 8 divisors (see below), whose sum is σ = 65334312. Its totient is φ = 41263488.

The previous prime is 53012293. The next prime is 53012317. The reversal of 53012305 is 50321035.

53012305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53012293) and next prime (53012317).

It can be written as a sum of positive squares in 4 ways, for example, as 6677056 + 46335249 = 2584^2 + 6807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53012305 - 29 = 53011793 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 143092 + ... + 143461.

It is an arithmetic number, because the mean of its divisors is an integer number (8166789).

Almost surely, 253012305 is an apocalyptic number.

It is an amenable number.

53012305 is a deficient number, since it is larger than the sum of its proper divisors (12322007).

53012305 is a wasteful number, since it uses less digits than its factorization.

53012305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286595.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 53012305 is about 7280.9549511036. The cubic root of 53012305 is about 375.6576430445.

The spelling of 53012305 in words is "fifty-three million, twelve thousand, three hundred five".

Divisors: 1 5 37 185 286553 1432765 10602461 53012305