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19014494268 = 22371120578457
BaseRepresentation
bin10001101101010110…
…100010100000111100
31211002011010101112110
4101231112202200330
5302420202304033
612422442334020
71242124351230
oct215526424074
954064111473
1019014494268
118078205a80
123827aba310
131a40473b53
14cc546c5c0
1576449e363
hex46d5a283c

19014494268 has 48 divisors (see below), whose sum is σ = 55314895104. Its totient is φ = 4938829440.

The previous prime is 19014494231. The next prime is 19014494299. The reversal of 19014494268 is 86249441091.

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, 10288305 + ... + 10290152.

It is an arithmetic number, because the mean of its divisors is an integer number (1152393648).

Almost surely, 219014494268 is an apocalyptic number.

It is an amenable number.

19014494268 is an abundant number, since it is smaller than the sum of its proper divisors (36300400836).

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

19014494268 is a wasteful number, since it uses less digits than its factorization.

19014494268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20578482 (or 20578480 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 19014494268 in words is "nineteen billion, fourteen million, four hundred ninety-four thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 20578457 41156914 61735371 82313828 123470742 144049199 226363027 246941484 288098398 432147597 452726054 576196796 679089081 864295194 905452108 1358178162 1584541189 1728590388 2716356324 3169082378 4753623567 6338164756 9507247134 19014494268