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52513250261 = 463117196857
BaseRepresentation
bin110000111010000010…
…001001101111010101
312000112201221111211212
4300322002021233111
51330021343002021
640042501111205
73536220155663
oct607202115725
9160481844755
1052513250261
11202a83a718a
12a2166b8505
134c4b65b264
14278242dc33
15157533b85b
hexc3a089bd5

52513250261 has 8 divisors (see below), whose sum is σ = 52672155264. Its totient is φ = 52354542240.

The previous prime is 52513250197. The next prime is 52513250267. The reversal of 52513250261 is 16205231525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52513250261 - 26 = 52513250197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52513250267) 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, 493745 + ... + 590601.

It is an arithmetic number, because the mean of its divisors is an integer number (6584019408).

Almost surely, 252513250261 is an apocalyptic number.

It is an amenable number.

52513250261 is a deficient number, since it is larger than the sum of its proper divisors (158905003).

52513250261 is a wasteful number, since it uses less digits than its factorization.

52513250261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98491.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 52513250261 its reverse (16205231525), we get a palindrome (68718481786).

The spelling of 52513250261 in words is "fifty-two billion, five hundred thirteen million, two hundred fifty thousand, two hundred sixty-one".

Divisors: 1 463 1171 96857 542173 44844791 113419547 52513250261