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19042135 = 57277723
BaseRepresentation
bin100100010100…
…0111101010111
31022211102220021
41020220331113
514333322020
61520050011
7320566300
oct110507527
938742807
1019042135
11a826702
126463907
133c39448
1427597a7
151a121aa
hex1228f57

19042135 has 12 divisors (see below), whose sum is σ = 26581608. Its totient is φ = 13057296.

The previous prime is 19042103. The next prime is 19042139. The reversal of 19042135 is 53124091.

It is not a de Polignac number, because 19042135 - 25 = 19042103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19042139) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 38617 + ... + 39106.

It is an arithmetic number, because the mean of its divisors is an integer number (2215134).

Almost surely, 219042135 is an apocalyptic number.

19042135 is a deficient number, since it is larger than the sum of its proper divisors (7539473).

19042135 is an equidigital number, since it uses as much as digits as its factorization.

19042135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77742 (or 77735 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 19042135 is about 4363.7294829079. The cubic root of 19042135 is about 267.0372703002.

The spelling of 19042135 in words is "nineteen million, forty-two thousand, one hundred thirty-five".

Divisors: 1 5 7 35 49 245 77723 388615 544061 2720305 3808427 19042135