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201312524 = 22719378407
BaseRepresentation
bin10111111111111…
…00100100001100
3112000210201212102
423333330210030
5403014000044
631550454232
74663061660
oct1377744414
9460721772
10201312524
11a36aa096
1257504378
133292684a
141ca448a0
1512a1824e
hexbffc90c

201312524 has 24 divisors (see below), whose sum is σ = 423816960. Its totient is φ = 81735696.

The previous prime is 201312499. The next prime is 201312563. The reversal of 201312524 is 425213102.

201312524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201312496 and 201312505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188672 + ... + 189735.

It is an arithmetic number, because the mean of its divisors is an integer number (17659040).

Almost surely, 2201312524 is an apocalyptic number.

It is an amenable number.

201312524 is an abundant number, since it is smaller than the sum of its proper divisors (222504436).

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

201312524 is a wasteful number, since it uses less digits than its factorization.

201312524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378437 (or 378435 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201312524 is about 14188.4644694202. The cubic root of 201312524 is about 586.0800404750.

Adding to 201312524 its reverse (425213102), we get a palindrome (626525626).

The spelling of 201312524 in words is "two hundred one million, three hundred twelve thousand, five hundred twenty-four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 378407 756814 1513628 2648849 5297698 7189733 10595396 14379466 28758932 50328131 100656262 201312524