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84864748280 = 23513792065841
BaseRepresentation
bin100111100001001010…
…1010100101011111000
322010001100222220002012
41033002111110223320
52342300333421110
6102553014025052
76063012313124
oct1170225245370
9263040886065
1084864748280
1132a99a35504
1214545048188
138005c596b0
144170cb0584
15231a60a905
hex13c2554af8

84864748280 has 64 divisors (see below), whose sum is σ = 208236873600. Its totient is φ = 30938019840.

The previous prime is 84864748279. The next prime is 84864748291. The reversal of 84864748280 is 8284746848.

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, 991841 + ... + 1074000.

It is an arithmetic number, because the mean of its divisors is an integer number (3253701150).

Almost surely, 284864748280 is an apocalyptic number.

It is an amenable number.

84864748280 is an abundant number, since it is smaller than the sum of its proper divisors (123372125320).

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

84864748280 is a wasteful number, since it uses less digits than its factorization.

84864748280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065944 (or 2065940 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 59.

The spelling of 84864748280 in words is "eighty-four billion, eight hundred sixty-four million, seven hundred forty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 79 104 130 158 260 316 395 520 632 790 1027 1580 2054 3160 4108 5135 8216 10270 20540 41080 2065841 4131682 8263364 10329205 16526728 20658410 26855933 41316820 53711866 82633640 107423732 134279665 163201439 214847464 268559330 326402878 537118660 652805756 816007195 1074237320 1305611512 1632014390 2121618707 3264028780 4243237414 6528057560 8486474828 10608093535 16972949656 21216187070 42432374140 84864748280