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52540005343 = 726117577787
BaseRepresentation
bin110000111011101000…
…001101101111011111
312000121121021210220211
4300323220031233133
51330100220132333
640045254353251
73536663451100
oct607350155737
9160547253824
1052540005343
1120311510721
12a22365b827
134c54068277
142785bd63a7
151577873ecd
hexc3ba0dbdf

52540005343 has 12 divisors (see below), whose sum is σ = 62119902792. Its totient is φ = 44296020720.

The previous prime is 52540005281. The next prime is 52540005359. The reversal of 52540005343 is 34350004525.

It is a happy number.

It is not a de Polignac number, because 52540005343 - 29 = 52540004831 is a prime.

It is a super-2 number, since 2×525400053432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52540005443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8785905 + ... + 8791882.

It is an arithmetic number, because the mean of its divisors is an integer number (5176658566).

Almost surely, 252540005343 is an apocalyptic number.

52540005343 is a deficient number, since it is larger than the sum of its proper divisors (9579897449).

52540005343 is a wasteful number, since it uses less digits than its factorization.

52540005343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17577862 (or 17577855 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 52540005343 its reverse (34350004525), we get a palindrome (86890009868).

The spelling of 52540005343 in words is "fifty-two billion, five hundred forty million, five thousand, three hundred forty-three".

Divisors: 1 7 49 61 427 2989 17577787 123044509 861311563 1072245007 7505715049 52540005343