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18374563836382 = 21319113421781861
BaseRepresentation
bin1000010110110001010010…
…10110011011000111011110
32102001120221221120000212111
410023120221112123013132
54402022101320231012
6103025054052024234
73604342551422245
oct413305126330736
972046857500774
1018374563836382
115944677297426
12208914430207a
13a33938690610
144774956cb95c
1521ce70675ba7
hex10b62959b1de

18374563836382 has 64 divisors (see below), whose sum is σ = 31595606360640. Its totient is φ = 7944197990400.

The previous prime is 18374563836373. The next prime is 18374563836383. The reversal of 18374563836382 is 28363836547381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374563836383) by changing a digit.

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, 23110132 + ... + 23891992.

It is an arithmetic number, because the mean of its divisors is an integer number (493681349385).

Almost surely, 218374563836382 is an apocalyptic number.

18374563836382 is a deficient number, since it is larger than the sum of its proper divisors (13221042524258).

18374563836382 is a wasteful number, since it uses less digits than its factorization.

18374563836382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782429.

The product of its digits is 418037760, while the sum is 67.

The spelling of 18374563836382 in words is "eighteen trillion, three hundred seventy-four billion, five hundred sixty-three million, eight hundred thirty-six thousand, three hundred eighty-two".

Divisors: 1 2 13 19 26 38 113 226 247 421 494 842 1469 2147 2938 4294 5473 7999 10946 15998 27911 47573 55822 95146 103987 207974 618449 781861 903887 1236898 1563722 1807774 10164193 11750531 14855359 20328386 23501062 29710718 88350293 176700586 193119667 329163481 386239334 658326962 1148553809 1678655567 2297107618 3357311134 4279125253 6254106139 8558250506 12508212278 21822522371 37195473353 43645044742 74390946706 81303379807 162606759614 483541153589 706713993707 967082307178 1413427987414 9187281918191 18374563836382