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512042305131 = 3278127655637
BaseRepresentation
bin1110111001110000001…
…10011000011001101011
31210221200002221012022200
413130320012120121223
531342130312231011
61031121243351243
751664612531560
oct7347006303153
91727602835280
10512042305131
11188179594595
12832a1b22523
1339392ca5406
141aad66d4867
15d4bce5d856
hex773819866b

512042305131 has 12 divisors (see below), whose sum is σ = 845276186352. Its totient is φ = 292595602896.

The previous prime is 512042305127. The next prime is 512042305207. The reversal of 512042305131 is 131503240215.

512042305131 is a `hidden beast` number, since 5 + 120 + 4 + 23 + 0 + 513 + 1 = 666.

It is not a de Polignac number, because 512042305131 - 22 = 512042305127 is a prime.

It is a super-4 number, since 4×5120423051314 (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 512042305095 and 512042305104.

It is not an unprimeable number, because it can be changed into a prime (512042305111) 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, 4063827756 + ... + 4063827881.

It is an arithmetic number, because the mean of its divisors is an integer number (70439682196).

Almost surely, 2512042305131 is an apocalyptic number.

512042305131 is a deficient number, since it is larger than the sum of its proper divisors (333233881221).

512042305131 is a wasteful number, since it uses less digits than its factorization.

512042305131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127655650 (or 8127655647 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 512042305131 its reverse (131503240215), we get a palindrome (643545545346).

The spelling of 512042305131 in words is "five hundred twelve billion, forty-two million, three hundred five thousand, one hundred thirty-one".

Divisors: 1 3 7 9 21 63 8127655637 24382966911 56893589459 73148900733 170680768377 512042305131