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52613921831 = 181637945569
BaseRepresentation
bin110001000000000010…
…001011110000100111
312000210202101011021112
4301000002023300213
51330223130444311
640100454535235
73541551646052
oct610002136047
9160722334245
1052613921831
112034a207229
12a24436751b
134c66478633
142791957a99
15157e0c528b
hexc4008bc27

52613921831 has 8 divisors (see below), whose sum is σ = 52914061200. Its totient is φ = 52313886720.

The previous prime is 52613921803. The next prime is 52613921887. The reversal of 52613921831 is 13812931625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52613921831 - 218 = 52613659687 is a prime.

It is a super-2 number, since 2×526139218312 (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 (52613921531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131815 + ... + 1177383.

It is an arithmetic number, because the mean of its divisors is an integer number (6614257650).

Almost surely, 252613921831 is an apocalyptic number.

52613921831 is a deficient number, since it is larger than the sum of its proper divisors (300139369).

52613921831 is a wasteful number, since it uses less digits than its factorization.

52613921831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52129.

The product of its digits is 77760, while the sum is 41.

The spelling of 52613921831 in words is "fifty-two billion, six hundred thirteen million, nine hundred twenty-one thousand, eight hundred thirty-one".

Divisors: 1 181 6379 45569 1154599 8247989 290684651 52613921831