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8160085680 = 2435174148781
BaseRepresentation
bin1111001100110000…
…10000011010110000
3210001200122022011120
413212120100122300
5113202440220210
63425414542240
7406133404155
oct74630203260
923050568146
108160085680
11350817916a
1216b8967980
13a00763886
14575a5a22c
1532b5bd270
hex1e66106b0

8160085680 has 160 divisors (see below), whose sum is σ = 27438118848. Its totient is φ = 1998028800.

The previous prime is 8160085669. The next prime is 8160085723. The reversal of 8160085680 is 865800618.

8160085680 is a modest number, since divided by 85680 gives 8160 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142890 + ... + 191670.

Almost surely, 28160085680 is an apocalyptic number.

8160085680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8160085680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13719059424).

8160085680 is an abundant number, since it is smaller than the sum of its proper divisors (19278033168).

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

8160085680 is a wasteful number, since it uses less digits than its factorization.

8160085680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48855 (or 48849 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 8160085680 is about 90333.1925706160. The cubic root of 8160085680 is about 2013.2524654545.

The spelling of 8160085680 in words is "eight billion, one hundred sixty million, eighty-five thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 41 48 51 60 68 80 82 85 102 120 123 136 164 170 204 205 240 246 255 272 328 340 408 410 492 510 615 656 680 697 816 820 984 1020 1230 1360 1394 1640 1968 2040 2091 2460 2788 3280 3485 4080 4182 4920 5576 6970 8364 9840 10455 11152 13940 16728 20910 27880 33456 41820 48781 55760 83640 97562 146343 167280 195124 243905 292686 390248 487810 585372 731715 780496 829277 975620 1170744 1463430 1658554 1951240 2000021 2341488 2487831 2926860 3317108 3902480 4000042 4146385 4975662 5853720 6000063 6634216 8000084 8292770 9951324 10000105 11707440 12000126 12439155 13268432 16000168 16585540 19902648 20000210 24000252 24878310 30000315 32000336 33171080 34000357 39805296 40000420 48000504 49756620 60000630 66342160 68000714 80000840 96001008 99513240 102001071 120001260 136001428 160001680 170001785 199026480 204002142 240002520 272002856 340003570 408004284 480005040 510005355 544005712 680007140 816008568 1020010710 1360014280 1632017136 2040021420 2720028560 4080042840 8160085680