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513230242 = 27192517687
BaseRepresentation
bin11110100101110…
…100010110100010
31022202201210112111
4132211310112202
52022341331432
6122532145534
715501246040
oct3645642642
91282653474
10513230242
11243783528
12123a682aa
1382438045
144c23b390
15300cd347
hex1e9745a2

513230242 has 32 divisors (see below), whose sum is σ = 929940480. Its totient is φ = 207522000.

The previous prime is 513230213. The next prime is 513230243. The reversal of 513230242 is 242032315.

It is not an unprimeable number, because it can be changed into a prime (513230243) 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, 62923 + ... + 70609.

It is an arithmetic number, because the mean of its divisors is an integer number (29060640).

Almost surely, 2513230242 is an apocalyptic number.

513230242 is a deficient number, since it is larger than the sum of its proper divisors (416710238).

513230242 is a wasteful number, since it uses less digits than its factorization.

513230242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 513230242 is about 22654.5854519565. The cubic root of 513230242 is about 800.6402385233.

Adding to 513230242 its reverse (242032315), we get a palindrome (755262557).

The spelling of 513230242 in words is "five hundred thirteen million, two hundred thirty thousand, two hundred forty-two".

Divisors: 1 2 7 14 19 38 133 251 266 502 1757 3514 4769 7687 9538 15374 33383 53809 66766 107618 146053 292106 1022371 1929437 2044742 3858874 13506059 27012118 36659303 73318606 256615121 513230242