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52104012531 = 3192293991727
BaseRepresentation
bin110000100001101001…
…000010001011110011
311222111012220002012220
4300201221002023303
51323202111400111
635534121452123
73523120541034
oct604151021363
9158435802186
1052104012531
11201083a188a
12a121641043
134bb493405c
142743d42a8b
15154e450e06
hexc21a422f3

52104012531 has 16 divisors (see below), whose sum is σ = 73447795200. Its totient is φ = 32764087008.

The previous prime is 52104012469. The next prime is 52104012547. The reversal of 52104012531 is 13521040125.

It is a happy number.

It is not a de Polignac number, because 52104012531 - 27 = 52104012403 is a prime.

It is a super-2 number, since 2×521040125312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52104012731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1982811 + ... + 2008916.

It is an arithmetic number, because the mean of its divisors is an integer number (4590487200).

Almost surely, 252104012531 is an apocalyptic number.

52104012531 is a deficient number, since it is larger than the sum of its proper divisors (21343782669).

52104012531 is a wasteful number, since it uses less digits than its factorization.

52104012531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991978.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 52104012531 its reverse (13521040125), we get a palindrome (65625052656).

The spelling of 52104012531 in words is "fifty-two billion, one hundred four million, twelve thousand, five hundred thirty-one".

Divisors: 1 3 19 57 229 687 4351 13053 3991727 11975181 75842813 227528439 914105483 2742316449 17368004177 52104012531