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86216278170 = 23511974795623
BaseRepresentation
bin101000001001011100…
…1000000000010011010
322020112120010201112210
41100102321000002122
52403032331400140
6103335054015550
76141343162401
oct1202271000232
9266476121483
1086216278170
1133622928960
12148617a75b6
13818cc67219
14425c5a6638
1523990c8d80
hex1412e4009a

86216278170 has 128 divisors (see below), whose sum is σ = 228573757440. Its totient is φ = 20638586880.

The previous prime is 86216278139. The next prime is 86216278177. The reversal of 86216278170 is 7187261268.

It is not an unprimeable number, because it can be changed into a prime (86216278177) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15329979 + ... + 15335601.

It is an arithmetic number, because the mean of its divisors is an integer number (1785732480).

Almost surely, 286216278170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86216278170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114286878720).

86216278170 is an abundant number, since it is smaller than the sum of its proper divisors (142357479270).

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

86216278170 is a wasteful number, since it uses less digits than its factorization.

86216278170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 86216278170 in words is "eighty-six billion, two hundred sixteen million, two hundred seventy-eight thousand, one hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 97 110 165 194 291 330 479 485 582 958 970 1067 1437 1455 2134 2395 2874 2910 3201 4790 5269 5335 5623 6402 7185 10538 10670 11246 14370 15807 16005 16869 26345 28115 31614 32010 33738 46463 52690 56230 61853 79035 84345 92926 123706 139389 158070 168690 185559 232315 278778 309265 371118 464630 511093 545431 618530 696945 927795 1022186 1090862 1393890 1533279 1636293 1855590 2555465 2693417 2727155 3066558 3272586 5110930 5386834 5454310 5999741 7666395 8080251 8181465 11999482 13467085 15332790 16160502 16362930 17999223 26934170 29627587 29998705 35998446 40401255 59255174 59997410 80802510 88882761 89996115 148137935 177765522 179992230 261261449 296275870 444413805 522522898 783784347 888827610 1306307245 1567568694 2612614490 2873875939 3918921735 5747751878 7837843470 8621627817 14369379695 17243255634 28738759390 43108139085 86216278170