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11530524665 = 5111991053497
BaseRepresentation
bin10101011110100010…
…11101011111111001
31002202120201100021002
422233101131133321
5142103303242130
65144055054345
7555510561662
oct125721353771
932676640232
1011530524665
114987753930
1222996713b5
131119b0947a
147b5530369
15477436b45
hex2af45d7f9

11530524665 has 16 divisors (see below), whose sum is σ = 15170371200. Its totient is φ = 8343688320.

The previous prime is 11530524659. The next prime is 11530524667. The reversal of 11530524665 is 56642503511.

It is not a de Polignac number, because 11530524665 - 218 = 11530262521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11530524667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515804 + ... + 537693.

It is an arithmetic number, because the mean of its divisors is an integer number (948148200).

Almost surely, 211530524665 is an apocalyptic number.

It is an amenable number.

11530524665 is a deficient number, since it is larger than the sum of its proper divisors (3639846535).

11530524665 is a wasteful number, since it uses less digits than its factorization.

11530524665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053712.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 11530524665 in words is "eleven billion, five hundred thirty million, five hundred twenty-four thousand, six hundred sixty-five".

Divisors: 1 5 11 55 199 995 2189 10945 1053497 5267485 11588467 57942335 209645903 1048229515 2306104933 11530524665