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19923073182 = 2321517330049
BaseRepresentation
bin10010100011100000…
…011111100010011110
31220102110202222111100
4102203200133202132
5311300301320212
613052540333530
71303466220315
oct224340374236
956373688440
1019923073182
1184a4067841
123a402442a6
131b567822cc
14d6ddbd27c
157b9122bdc
hex4a381f89e

19923073182 has 24 divisors (see below), whose sum is σ = 43452536400. Its totient is φ = 6597043200.

The previous prime is 19923073151. The next prime is 19923073189. The reversal of 19923073182 is 28137032991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19923073189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3662307 + ... + 3667742.

It is an arithmetic number, because the mean of its divisors is an integer number (1810522350).

Almost surely, 219923073182 is an apocalyptic number.

19923073182 is an abundant number, since it is smaller than the sum of its proper divisors (23529463218).

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

19923073182 is a wasteful number, since it uses less digits than its factorization.

19923073182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330208 (or 7330205 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 19923073182 in words is "nineteen billion, nine hundred twenty-three million, seventy-three thousand, one hundred eighty-two".

Divisors: 1 2 3 6 9 18 151 302 453 906 1359 2718 7330049 14660098 21990147 43980294 65970441 131940882 1106837399 2213674798 3320512197 6641024394 9961536591 19923073182