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16104859686 = 23219373833323
BaseRepresentation
bin11101111111110110…
…01010100000100110
31112120101010122020200
432333323022200212
5230440321002221
611222023011330
71110044022456
oct167773124046
945511118220
1016104859686
1169148564a3
123155599b46
13169870b996
14acac69d66
15643d0a426
hex3bfeca826

16104859686 has 96 divisors (see below), whose sum is σ = 37832970240. Its totient is φ = 4933887552.

The previous prime is 16104859663. The next prime is 16104859691. The reversal of 16104859686 is 68695840161.

16104859686 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 48 + 596 + 8 + 6 = 666.

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, 4844821 + ... + 4848143.

It is an arithmetic number, because the mean of its divisors is an integer number (394093440).

Almost surely, 216104859686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16104859686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18916485120).

16104859686 is an abundant number, since it is smaller than the sum of its proper divisors (21728110554).

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

16104859686 is a wasteful number, since it uses less digits than its factorization.

16104859686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 16104859686 in words is "sixteen billion, one hundred four million, eight hundred fifty-nine thousand, six hundred eighty-six".

Divisors: 1 2 3 6 9 18 19 37 38 57 74 111 114 171 222 333 342 383 666 703 766 1149 1406 2109 2298 3323 3447 4218 6327 6646 6894 7277 9969 12654 14171 14554 19938 21831 28342 29907 42513 43662 59814 63137 65493 85026 122951 126274 127539 130986 189411 245902 255078 269249 368853 378822 538498 568233 737706 807747 1106559 1136466 1272709 1615494 2213118 2336069 2423241 2545418 3818127 4672138 4846482 7008207 7636254 11454381 14016414 21024621 22908762 24181471 42049242 47090233 48362942 72544413 94180466 141270699 145088826 217633239 282541398 423812097 435266478 847624194 894714427 1789428854 2684143281 5368286562 8052429843 16104859686