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86216273880 = 233511281232439
BaseRepresentation
bin101000001001011100…
…0111110111111011000
322020112120010111122220
41100102320332333120
52403032331231010
6103335053544040
76141343144032
oct1202270767730
9266476114586
1086216273880
1133622925710
12148617a5020
13818cc65299
14425c5a4c52
1523990c7970
hex1412e3efd8

86216273880 has 128 divisors (see below), whose sum is σ = 283167705600. Its totient is φ = 20826444800.

The previous prime is 86216273873. The next prime is 86216273893. The reversal of 86216273880 is 8837261268.

It is a happy number.

It is a congruent number.

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, 254701 + ... + 487139.

It is an arithmetic number, because the mean of its divisors is an integer number (2212247700).

Almost surely, 286216273880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86216273880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141583852800).

86216273880 is an abundant number, since it is smaller than the sum of its proper divisors (196951431720).

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

86216273880 is a wasteful number, since it uses less digits than its factorization.

86216273880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232745 (or 232741 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 86216273880 in words is "eighty-six billion, two hundred sixteen million, two hundred seventy-three thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 281 330 440 562 660 843 1124 1320 1405 1686 2248 2810 3091 3372 4215 5620 6182 6744 8430 9273 11240 12364 15455 16860 18546 24728 30910 33720 37092 46365 61820 74184 92730 123640 185460 232439 370920 464878 697317 929756 1162195 1394634 1859512 2324390 2556829 2789268 3486585 4648780 5113658 5578536 6973170 7670487 9297560 10227316 12784145 13946340 15340974 20454632 25568290 27892680 30681948 38352435 51136580 61363896 65315359 76704870 102273160 130630718 153409740 195946077 261261436 306819480 326576795 391892154 522522872 653153590 718468949 783784308 979730385 1306307180 1436937898 1567568616 1959460770 2155406847 2612614360 2873875796 3592344745 3918921540 4310813694 5747751592 7184689490 7837843080 8621627388 10777034235 14369378980 17243254776 21554068470 28738757960 43108136940 86216273880