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81469533096 = 23327592739761
BaseRepresentation
bin100101111011111110…
…1100110101110101000
321210021202022002102200
41023313331212232220
52313322200024341
6101232050500200
75612614414440
oct1136775465650
9253252262380
1081469533096
1131607478046
1213957b94660
1378b471a723
143d2bdcb120
1521bc4eadb6
hex12f7f66ba8

81469533096 has 96 divisors (see below), whose sum is σ = 256441723200. Its totient is φ = 22882475520.

The previous prime is 81469533077. The next prime is 81469533121. The reversal of 81469533096 is 69033596418.

81469533096 is a `hidden beast` number, since 8 + 14 + 6 + 9 + 533 + 0 + 96 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1340145 + ... + 1399616.

It is an arithmetic number, because the mean of its divisors is an integer number (2671267950).

Almost surely, 281469533096 is an apocalyptic number.

It is an amenable number.

81469533096 is an abundant number, since it is smaller than the sum of its proper divisors (174972190104).

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

81469533096 is a wasteful number, since it uses less digits than its factorization.

81469533096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739839 (or 2739832 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 81469533096 in words is "eighty-one billion, four hundred sixty-nine million, five hundred thirty-three thousand, ninety-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 59 63 72 84 118 126 168 177 236 252 354 413 472 504 531 708 826 1062 1239 1416 1652 2124 2478 3304 3717 4248 4956 7434 9912 14868 29736 2739761 5479522 8219283 10959044 16438566 19178327 21918088 24657849 32877132 38356654 49315698 57534981 65754264 76713308 98631396 115069962 153426616 161645899 172604943 197262792 230139924 323291798 345209886 460279848 484937697 646583596 690419772 969875394 1131521293 1293167192 1380839544 1454813091 1939750788 2263042586 2909626182 3394563879 3879501576 4526085172 5819252364 6789127758 9052170344 10183691637 11638504728 13578255516 20367383274 27156511032 40734766548 81469533096