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19006 = 2131743
BaseRepresentation
bin100101000111110
3222001221
410220332
51102011
6223554
7106261
oct45076
928057
1019006
1113309
12abba
138860
146cd8
155971
hex4a3e

19006 has 16 divisors (see below), whose sum is σ = 33264. Its totient is φ = 8064.

The previous prime is 19001. The next prime is 19009. The reversal of 19006 is 60091.

19006 is nontrivially palindromic in base 5 and base 12.

It is a super-2 number, since 2×190062 = 722456072, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 463.

It is an arithmetic number, because the mean of its divisors is an integer number (2079).

219006 is an apocalyptic number.

19006 is a deficient number, since it is larger than the sum of its proper divisors (14258).

19006 is a wasteful number, since it uses less digits than its factorization.

19006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 19006 is about 137.8622500904. The cubic root of 19006 is about 26.6868250354.

Adding to 19006 its reverse (60091), we get a palindrome (79097).

The spelling of 19006 in words is "nineteen thousand, six".

Divisors: 1 2 13 17 26 34 43 86 221 442 559 731 1118 1462 9503 19006