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18268480612326 = 2374729331585493
BaseRepresentation
bin1000010011101011101100…
…10011000010011111100110
32101200110010211020220000010
410021311312103002133212
54343302322014043301
6102504231340231050
73563565660043530
oct411656623023746
971613124226003
1018268480612326
11590368a05802a
12207067923b486
13a26930796419
144722b0796850
1521a3123645d6
hex109d764c27e6

18268480612326 has 64 divisors (see below), whose sum is σ = 42790511167488. Its totient is φ = 5091075942528.

The previous prime is 18268480612307. The next prime is 18268480612331. The reversal of 18268480612326 is 62321608486281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15214365 + ... + 16371128.

It is an arithmetic number, because the mean of its divisors is an integer number (668601736992).

Almost surely, 218268480612326 is an apocalyptic number.

18268480612326 is an abundant number, since it is smaller than the sum of its proper divisors (24522030555162).

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

18268480612326 is a wasteful number, since it uses less digits than its factorization.

18268480612326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31585845.

The product of its (nonzero) digits is 10616832, while the sum is 57.

The spelling of 18268480612326 in words is "eighteen trillion, two hundred sixty-eight billion, four hundred eighty million, six hundred twelve thousand, three hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 47 94 141 282 293 329 586 658 879 987 1758 1974 2051 4102 6153 12306 13771 27542 41313 82626 96397 192794 289191 578382 31585493 63170986 94756479 189512958 221098451 442196902 663295353 1326590706 1484518171 2969036342 4453554513 8907109026 9254549449 10391627197 18509098898 20783254394 27763648347 31174881591 55527296694 62349763182 64781846143 129563692286 194345538429 388691076858 434963824103 869927648206 1304891472309 2609782944618 3044746768721 6089493537442 9134240306163 18268480612326