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538312386630 = 23519990169579
BaseRepresentation
bin1111101010101011110…
…10110010100001000110
31220110110220201121102010
413311111322302201012
532304430432333010
61051144114355050
753614611534504
oct7652572624106
91813426647363
10538312386630
1119832a343647
12883b388ba86
133b9bb69ca35
141c0a9611674
15e0093b1620
hex7d55eb2846

538312386630 has 32 divisors (see below), whose sum is σ = 1298441952000. Its totient is φ = 142828611552.

The previous prime is 538312386593. The next prime is 538312386683. The reversal of 538312386630 is 36683213835.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 538312386630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45078820 + ... + 45090759.

It is an arithmetic number, because the mean of its divisors is an integer number (40576311000).

Almost surely, 2538312386630 is an apocalyptic number.

538312386630 is an abundant number, since it is smaller than the sum of its proper divisors (760129565370).

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

538312386630 is a wasteful number, since it uses less digits than its factorization.

538312386630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90169788.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 538312386630 in words is "five hundred thirty-eight billion, three hundred twelve million, three hundred eighty-six thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 199 398 597 995 1194 1990 2985 5970 90169579 180339158 270508737 450847895 541017474 901695790 1352543685 2705087370 17943746221 35887492442 53831238663 89718731105 107662477326 179437462210 269156193315 538312386630