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52112115405 = 3257414035007
BaseRepresentation
bin110000100010000111…
…111100011011001101
311222111210010202021100
4300202013330123031
51323211200143110
635535011253313
73523246446420
oct604207743315
9158453122240
1052112115405
1120111a26679
12a1242aa239
134bb651025c
1427450519b7
151550001bc0
hexc221fc6cd

52112115405 has 48 divisors (see below), whose sum is σ = 105749489664. Its totient is φ = 23241634560.

The previous prime is 52112115379. The next prime is 52112115457. The reversal of 52112115405 is 50451121125.

It is a happy number.

52112115405 is a `hidden beast` number, since 5 + 2 + 112 + 1 + 1 + 540 + 5 = 666.

52112115405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52112115405 - 25 = 52112115373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2004589 + ... + 2030418.

It is an arithmetic number, because the mean of its divisors is an integer number (2203114368).

Almost surely, 252112115405 is an apocalyptic number.

It is an amenable number.

52112115405 is an abundant number, since it is smaller than the sum of its proper divisors (53637374259).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52112115405 is a wasteful number, since it uses less digits than its factorization.

52112115405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035066 (or 4035063 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 52112115405 in words is "fifty-two billion, one hundred twelve million, one hundred fifteen thousand, four hundred five".

Divisors: 1 3 5 7 9 15 21 35 41 45 63 105 123 205 287 315 369 615 861 1435 1845 2583 4305 12915 4035007 12105021 20175035 28245049 36315063 60525105 84735147 141225245 165435287 181575315 254205441 423675735 496305861 827176435 1158047009 1271027205 1488917583 2481529305 3474141027 5790235045 7444587915 10422423081 17370705135 52112115405