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86886889992 = 23327874719709
BaseRepresentation
bin101000011101011011…
…1001011101000001000
322022021022000100000200
41100322313023220020
52410421020434432
6103525411332200
76164065244040
oct1207267135010
9268238010020
1086886889992
1133937425501
1214a0a2b1060
138268b86c56
1442c3690720
1523d7de3a7c
hex143adcba08

86886889992 has 96 divisors (see below), whose sum is σ = 268980004800. Its totient is φ = 24820728192.

The previous prime is 86886889961. The next prime is 86886889997. The reversal of 86886889992 is 29998868868.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (86886889997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4398634 + ... + 4418342.

It is an arithmetic number, because the mean of its divisors is an integer number (2801875050).

Almost surely, 286886889992 is an apocalyptic number.

It is an amenable number.

86886889992 is an abundant number, since it is smaller than the sum of its proper divisors (182093114808).

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

86886889992 is a wasteful number, since it uses less digits than its factorization.

86886889992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28475 (or 28468 counting only the distinct ones).

The product of its digits is 1719926784, while the sum is 81.

The spelling of 86886889992 in words is "eighty-six billion, eight hundred eighty-six million, eight hundred eighty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 8747 17494 19709 26241 34988 39418 52482 59127 61229 69976 78723 78836 104964 118254 122458 137963 157446 157672 177381 183687 209928 236508 244916 275926 314892 354762 367374 413889 473016 489832 551061 551852 629784 709524 734748 827778 1102122 1103704 1241667 1419048 1469496 1655556 2204244 2483334 3311112 4408488 4966668 9933336 172394623 344789246 517183869 689578492 1034367738 1206762361 1379156984 1551551607 2068735476 2413524722 3103103214 3620287083 4137470952 4827049444 6206206428 7240574166 9654098888 10860861249 12412412856 14481148332 21721722498 28962296664 43443444996 86886889992