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18373836382 = 2112007141611
BaseRepresentation
bin10001000111001010…
…100111111001011110
31202102111121121010121
4101013022213321132
5300112200231012
612235115025154
71220215014046
oct210712477136
952374547117
1018373836382
117879608250
12368943b1ba
13196a811145
14c64340726
157280eea07
hex4472a7e5e

18373836382 has 16 divisors (see below), whose sum is σ = 30068498304. Its totient is φ = 8351127000.

The previous prime is 18373836367. The next prime is 18373836407. The reversal of 18373836382 is 28363837381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420757 + ... + 462367.

It is an arithmetic number, because the mean of its divisors is an integer number (1879281144).

Almost surely, 218373836382 is an apocalyptic number.

18373836382 is a deficient number, since it is larger than the sum of its proper divisors (11694661922).

18373836382 is a wasteful number, since it uses less digits than its factorization.

18373836382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61695.

The product of its digits is 3483648, while the sum is 52.

Subtracting 18373836382 from its reverse (28363837381), we obtain a palindrome (9990000999).

The spelling of 18373836382 in words is "eighteen billion, three hundred seventy-three million, eight hundred thirty-six thousand, three hundred eighty-two".

Divisors: 1 2 11 22 20071 40142 41611 83222 220781 441562 457721 915442 835174381 1670348762 9186918191 18373836382