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19382330 = 25112347163
BaseRepresentation
bin100100111110…
…0000000111010
31100110201120002
41021330000322
514430213310
61531233002
7323514152
oct111740072
940421502
1019382330
11aa39260
1265a8762
134028246
142807762
151a7cda5
hex127c03a

19382330 has 64 divisors (see below), whose sum is σ = 40808448. Its totient is φ = 6557760.

The previous prime is 19382317. The next prime is 19382333. The reversal of 19382330 is 3328391.

It is a junction number, because it is equal to n+sod(n) for n = 19382293 and 19382302.

It is not an unprimeable number, because it can be changed into a prime (19382333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118829 + ... + 118991.

It is an arithmetic number, because the mean of its divisors is an integer number (637632).

Almost surely, 219382330 is an apocalyptic number.

19382330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19382330 is an abundant number, since it is smaller than the sum of its proper divisors (21426118).

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

19382330 is a wasteful number, since it uses less digits than its factorization.

19382330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 19382330 is about 4402.5367687278. The cubic root of 19382330 is about 268.6181339746.

The spelling of 19382330 in words is "nineteen million, three hundred eighty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 47 55 94 110 115 163 230 235 253 326 470 506 517 815 1034 1081 1265 1630 1793 2162 2530 2585 3586 3749 5170 5405 7498 7661 8965 10810 11891 15322 17930 18745 23782 37490 38305 41239 59455 76610 82478 84271 118910 168542 176203 206195 352406 412390 421355 842710 881015 1762030 1938233 3876466 9691165 19382330