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52086312 = 2332723421
BaseRepresentation
bin1100011010110…
…0011000101000
310122000020222200
43012230120220
5101313230222
65100220200
71201504065
oct306543050
9118006880
1052086312
1127446243
121553a660
13aa38c05
146cbbc6c
15488ceac
hex31ac628

52086312 has 24 divisors (see below), whose sum is σ = 141067290. Its totient is φ = 17362080.

The previous prime is 52086259. The next prime is 52086313. The reversal of 52086312 is 21368025.

52086312 is a `hidden beast` number, since 5 + 20 + 8 + 631 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44435556 + 7650756 = 6666^2 + 2766^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×520863122 = 5425967795522688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52086313) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 361639 + ... + 361782.

Almost surely, 252086312 is an apocalyptic number.

It is an amenable number.

52086312 is an abundant number, since it is smaller than the sum of its proper divisors (88980978).

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

52086312 is a wasteful number, since it uses less digits than its factorization.

52086312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723433 (or 723426 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 52086312 is about 7217.0847300001. The cubic root of 52086312 is about 373.4575146699.

The spelling of 52086312 in words is "fifty-two million, eighty-six thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 723421 1446842 2170263 2893684 4340526 5787368 6510789 8681052 13021578 17362104 26043156 52086312