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16230202686 = 23319151104761
BaseRepresentation
bin11110001110110010…
…10011110100111110
31112220002222201112000
433013121103310332
5231214412441221
611242301323130
71113125306115
oct170731236476
945802881460
1016230202686
116979587555
12318b5664a6
1316b8686839
14add776c7c
1564ed18e26
hex3c7653d3e

16230202686 has 64 divisors (see below), whose sum is σ = 38217177600. Its totient is φ = 5091336000.

The previous prime is 16230202657. The next prime is 16230202691. The reversal of 16230202686 is 68620203261.

16230202686 is a `hidden beast` number, since 1 + 623 + 0 + 2 + 0 + 26 + 8 + 6 = 666.

It is a super-2 number, since 2×162302026862 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16230202686.

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, 102546 + ... + 207306.

It is an arithmetic number, because the mean of its divisors is an integer number (597143400).

Almost surely, 216230202686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16230202686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19108588800).

16230202686 is an abundant number, since it is smaller than the sum of its proper divisors (21986974914).

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

16230202686 is a wasteful number, since it uses less digits than its factorization.

16230202686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104942 (or 104936 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 16230202686 in words is "sixteen billion, two hundred thirty million, two hundred two thousand, six hundred eighty-six".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 151 171 302 342 453 513 906 1026 1359 2718 2869 4077 5738 8154 8607 17214 25821 51642 77463 104761 154926 209522 314283 628566 942849 1885698 1990459 2828547 3980918 5657094 5971377 11942754 15818911 17914131 31637822 35828262 47456733 53742393 94913466 107484786 142370199 284740398 300559309 427110597 601118618 854221194 901677927 1803355854 2705033781 5410067562 8115101343 16230202686