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52511414309 = 181549289241
BaseRepresentation
bin110000111001111011…
…001001100000100101
312000112121111020101122
4300321323021200211
51330020410224214
640042353503325
73536165441234
oct607173114045
9160477436348
1052511414309
11202a7362872
12a215b71b45
134c4b1676b3
1427820b2b1b
1515750c788e
hexc39ec9825

52511414309 has 4 divisors (see below), whose sum is σ = 52511885100. Its totient is φ = 52510943520.

The previous prime is 52511414297. The next prime is 52511414311. The reversal of 52511414309 is 90341411525.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3039868225 + 49471546084 = 55135^2 + 222422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52511414309 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 (52511414009) 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 3 ways as a sum of consecutive naturals, for example, 36929 + ... + 326169.

It is an arithmetic number, because the mean of its divisors is an integer number (13127971275).

Almost surely, 252511414309 is an apocalyptic number.

It is an amenable number.

52511414309 is a deficient number, since it is larger than the sum of its proper divisors (470791).

52511414309 is a wasteful number, since it uses less digits than its factorization.

52511414309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470790.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 52511414309 in words is "fifty-two billion, five hundred eleven million, four hundred fourteen thousand, three hundred nine".

Divisors: 1 181549 289241 52511414309