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87929787094 = 2672234676301
BaseRepresentation
bin101000111100100000…
…1100001001011010110
322101221222101222220021
41101321001201023112
52420040011141334
6104221104255354
76231660600262
oct1217101411326
9271858358807
1087929787094
1134322088536
121505b61155a
1383a3c63526
144381da70a2
15244974a3b4
hex14790612d6

87929787094 has 32 divisors (see below), whose sum is σ = 134772857856. Its totient is φ = 43015341600.

The previous prime is 87929787091. The next prime is 87929787131. The reversal of 87929787094 is 49078792978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87929787091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13951744 + ... + 13958044.

It is an arithmetic number, because the mean of its divisors is an integer number (4211651808).

Almost surely, 287929787094 is an apocalyptic number.

87929787094 is a deficient number, since it is larger than the sum of its proper divisors (46843070762).

87929787094 is a wasteful number, since it uses less digits than its factorization.

87929787094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060.

The product of its (nonzero) digits is 128024064, while the sum is 70.

The spelling of 87929787094 in words is "eighty-seven billion, nine hundred twenty-nine million, seven hundred eighty-seven thousand, ninety-four".

Divisors: 1 2 67 134 223 446 467 934 6301 12602 14941 29882 31289 62578 104141 208282 422167 844334 1405123 2810246 2942567 5885134 6977447 13954894 94143241 188286482 197151989 394303978 656192441 1312384882 43964893547 87929787094