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12540636104 = 2323160942359
BaseRepresentation
bin10111010110111101…
…01110101111001000
31012100222102022122212
423223132232233020
5201140400323404
65432221204252
7622524435203
oct135336565710
935328368585
1012540636104
115355953577
12251ba00688
13124b176b49
1486d75093a
154d5e6406e
hex2eb7aebc8

12540636104 has 32 divisors (see below), whose sum is σ = 24551856000. Its totient is φ = 5993826432.

The previous prime is 12540636089. The next prime is 12540636113. The reversal of 12540636104 is 40163604521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274877 + ... + 317235.

It is an arithmetic number, because the mean of its divisors is an integer number (767245500).

Almost surely, 212540636104 is an apocalyptic number.

It is an amenable number.

12540636104 is a deficient number, since it is larger than the sum of its proper divisors (12011219896).

12540636104 is a wasteful number, since it uses less digits than its factorization.

12540636104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43997 (or 43993 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 12540636104 in words is "twelve billion, five hundred forty million, six hundred thirty-six thousand, one hundred four".

Divisors: 1 2 4 8 23 46 92 184 1609 3218 6436 12872 37007 42359 74014 84718 148028 169436 296056 338872 974257 1948514 3897028 7794056 68155631 136311262 272622524 545245048 1567579513 3135159026 6270318052 12540636104