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52530131351 = 67378053687
BaseRepresentation
bin110000111011000010…
…100011000110010111
312000120220201011100102
4300323002203012113
51330040203200401
640044303004315
73536513514665
oct607302430627
9160526634312
1052530131351
11203069871a5
12a22029969b
134c51cbbb79
142784785c35
151576a7356b
hexc3b0a3197

52530131351 has 4 divisors (see below), whose sum is σ = 52608185712. Its totient is φ = 52452076992.

The previous prime is 52530131341. The next prime is 52530131363. The reversal of 52530131351 is 15313103525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52530131351 - 210 = 52530130327 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 (52530131341) 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, 39026171 + ... + 39027516.

It is an arithmetic number, because the mean of its divisors is an integer number (13152046428).

Almost surely, 252530131351 is an apocalyptic number.

52530131351 is a deficient number, since it is larger than the sum of its proper divisors (78054361).

52530131351 is an equidigital number, since it uses as much as digits as its factorization.

52530131351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78054360.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 52530131351 its reverse (15313103525), we get a palindrome (67843234876).

The spelling of 52530131351 in words is "fifty-two billion, five hundred thirty million, one hundred thirty-one thousand, three hundred fifty-one".

Divisors: 1 673 78053687 52530131351