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19000053 = 327926723
BaseRepresentation
bin100100001111…
…0101011110101
31022202022011200
41020132223311
514331000203
61515123113
7320332512
oct110365365
938668150
1019000053
11a7a8026
126443499
133c23247
142748309
151a049a3
hex121eaf5

19000053 has 12 divisors (see below), whose sum is σ = 27792960. Its totient is φ = 12505896.

The previous prime is 19000043. The next prime is 19000073. The reversal of 19000053 is 35000091.

It is not a de Polignac number, because 19000053 - 26 = 18999989 is a prime.

It is a super-2 number, since 2×190000532 = 722004028005618, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19000013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12651 + ... + 14072.

It is an arithmetic number, because the mean of its divisors is an integer number (2316080).

Almost surely, 219000053 is an apocalyptic number.

It is an amenable number.

19000053 is a deficient number, since it is larger than the sum of its proper divisors (8792907).

19000053 is a wasteful number, since it uses less digits than its factorization.

19000053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26808 (or 26805 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 19000053 is about 4358.9050230534. The cubic root of 19000053 is about 266.8404129865.

The spelling of 19000053 in words is "nineteen million, fifty-three", and thus it is an aban number and an uban number.

Divisors: 1 3 9 79 237 711 26723 80169 240507 2111117 6333351 19000053