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52515323211 = 3131638261023
BaseRepresentation
bin110000111010001010…
…000011110101001011
312000112212211211101210
4300322022003311023
51330022410320321
640043013344203
73536243611401
oct607212036513
9160485754353
1052515323211
11202a959266a
12a217338063
134c4bc05960
14278280d471
1515755eab76
hexc3a283d4b

52515323211 has 16 divisors (see below), whose sum is σ = 75869244416. Its totient is φ = 32118853536.

The previous prime is 52515323141. The next prime is 52515323227. The reversal of 52515323211 is 11232351525.

It is not a de Polignac number, because 52515323211 - 210 = 52515322187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52515323411) 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 15 ways as a sum of consecutive naturals, for example, 4124155 + ... + 4136868.

It is an arithmetic number, because the mean of its divisors is an integer number (4741827776).

Almost surely, 252515323211 is an apocalyptic number.

52515323211 is a deficient number, since it is larger than the sum of its proper divisors (23353921205).

52515323211 is a wasteful number, since it uses less digits than its factorization.

52515323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261202.

The product of its digits is 9000, while the sum is 30.

Adding to 52515323211 its reverse (11232351525), we get a palindrome (63747674736).

The spelling of 52515323211 in words is "fifty-two billion, five hundred fifteen million, three hundred twenty-three thousand, two hundred eleven".

Divisors: 1 3 13 39 163 489 2119 6357 8261023 24783069 107393299 322179897 1346546749 4039640247 17505107737 52515323211