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242145514 = 21319934673
BaseRepresentation
bin11100110111011…
…01100011101010
3121212122021012101
432123231203222
5443442124024
640010004014
76000126412
oct1633554352
9555567171
10242145514
11114759566
126911660a
133b222590
1424233642
15163d1c44
hexe6ed8ea

242145514 has 16 divisors (see below), whose sum is σ = 391438152. Its totient is φ = 111679488.

The previous prime is 242145511. The next prime is 242145559. The reversal of 242145514 is 415541242.

It can be written as a sum of positive squares in 4 ways, for example, as 234610489 + 7535025 = 15317^2 + 2745^2 .

It is not an unprimeable number, because it can be changed into a prime (242145511) by changing a digit.

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, 49482 + ... + 54154.

Almost surely, 2242145514 is an apocalyptic number.

242145514 is a deficient number, since it is larger than the sum of its proper divisors (149292638).

242145514 is a wasteful number, since it uses less digits than its factorization.

242145514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681.

The product of its digits is 6400, while the sum is 28.

The square root of 242145514 is about 15561.0254803467. The cubic root of 242145514 is about 623.2928465288.

Adding to 242145514 its reverse (415541242), we get a palindrome (657686756).

The spelling of 242145514 in words is "two hundred forty-two million, one hundred forty-five thousand, five hundred fourteen".

Divisors: 1 2 13 26 1993 3986 4673 9346 25909 51818 60749 121498 9313289 18626578 121072757 242145514