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52540232311 = 725471960237
BaseRepresentation
bin110000111011101001…
…000101001001110111
312000121121201100021001
4300323221011021313
51330100244413221
640045303304131
73536665414600
oct607351051167
9160547640231
1052540232311
11203116561a6
12a22374b047
134c54117678
142785c54da7
1515778bb391
hexc3ba45277

52540232311 has 12 divisors (see below), whose sum is σ = 61229994168. Its totient is φ = 44952131952.

The previous prime is 52540232287. The next prime is 52540232357. The reversal of 52540232311 is 11323204525.

It is not a de Polignac number, because 52540232311 - 213 = 52540224119 is a prime.

It is a super-2 number, since 2×525402323112 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52540232311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52540242311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 953316 + ... + 1006921.

It is an arithmetic number, because the mean of its divisors is an integer number (5102499514).

Almost surely, 252540232311 is an apocalyptic number.

52540232311 is a deficient number, since it is larger than the sum of its proper divisors (8689761857).

52540232311 is a wasteful number, since it uses less digits than its factorization.

52540232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960798 (or 1960791 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 52540232311 its reverse (11323204525), we get a palindrome (63863436836).

The spelling of 52540232311 in words is "fifty-two billion, five hundred forty million, two hundred thirty-two thousand, three hundred eleven".

Divisors: 1 7 49 547 3829 26803 1960237 13721659 96051613 1072249639 7505747473 52540232311