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87016802642 = 27111944936619
BaseRepresentation
bin101000100001010011…
…0110000100101010010
322022121100110120200022
41101002212300211102
52411202300141032
6103550332023442
76200233422110
oct1210246604522
9268540416608
1087016802642
11339a3797830
1214a45901b82
138289a71a43
1442d6a2aab0
1523e4506512
hex14429b0952

87016802642 has 64 divisors (see below), whose sum is σ = 171361612800. Its totient is φ = 32106300480.

The previous prime is 87016802641. The next prime is 87016802647. The reversal of 87016802642 is 24620861078.

It is a junction number, because it is equal to n+sod(n) for n = 87016802593 and 87016802602.

It is not an unprimeable number, because it can be changed into a prime (87016802641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13143209 + ... + 13149827.

It is an arithmetic number, because the mean of its divisors is an integer number (2677525200).

Almost surely, 287016802642 is an apocalyptic number.

87016802642 is a deficient number, since it is larger than the sum of its proper divisors (84344810158).

87016802642 is a wasteful number, since it uses less digits than its factorization.

87016802642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 87016802642 in words is "eighty-seven billion, sixteen million, eight hundred two thousand, six hundred forty-two".

Divisors: 1 2 7 11 14 19 22 38 77 133 154 209 266 418 1463 2926 4493 6619 8986 13238 31451 46333 49423 62902 72809 85367 92666 98846 125761 145618 170734 251522 345961 509663 597569 691922 880327 939037 1019326 1195138 1383371 1760654 1878074 2766742 6573259 9683597 13146518 19367194 29739167 59478334 208174169 327130837 416348338 565044173 654261674 1130088346 2289915859 3955309211 4579831718 6215485903 7910618422 12430971806 43508401321 87016802642