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19000234 = 2113112777
BaseRepresentation
bin100100001111…
…0101110101010
31022202022102101
41020132232222
514331001414
61515124014
7320333161
oct110365652
938668371
1019000234
11a7a8180
12644360a
133c23356
1427483d8
151a04a74
hex121ebaa

19000234 has 16 divisors (see below), whose sum is σ = 31202496. Its totient is φ = 8605600.

The previous prime is 19000229. The next prime is 19000243. The reversal of 19000234 is 43200091.

It is a super-2 number, since 2×190002342 = 722017784109512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5454 + ... + 8230.

It is an arithmetic number, because the mean of its divisors is an integer number (1950156).

Almost surely, 219000234 is an apocalyptic number.

19000234 is a deficient number, since it is larger than the sum of its proper divisors (12202262).

19000234 is a wasteful number, since it uses less digits than its factorization.

19000234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 19000234 is about 4358.9257850989. The cubic root of 19000234 is about 266.8412603168.

It can be divided in two parts, 190002 and 34, that added together give a triangular number (190036 = T616).

The spelling of 19000234 in words is "nineteen million, two hundred thirty-four", and thus it is an aban number.

Divisors: 1 2 11 22 311 622 2777 3421 5554 6842 30547 61094 863647 1727294 9500117 19000234