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19289052 = 22321373911
BaseRepresentation
bin100100110010…
…1001111011100
31100021222121100
41021211033130
514414222202
61525233100
7322645206
oct111451734
940258540
1019289052
11a985172
126562790
133cc4953
1427c1776
151a6041c
hex12653dc

19289052 has 36 divisors (see below), whose sum is σ = 49126896. Its totient is φ = 6381120.

The previous prime is 19289051. The next prime is 19289057. The reversal of 19289052 is 25098291.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 19288998 and 19289016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19289051) 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, 2977 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (1364636).

Almost surely, 219289052 is an apocalyptic number.

19289052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19289052 is an abundant number, since it is smaller than the sum of its proper divisors (29837844).

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

19289052 is a wasteful number, since it uses less digits than its factorization.

19289052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058 (or 4053 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 19289052 is about 4391.9303273162. The cubic root of 19289052 is about 268.1865301271.

The spelling of 19289052 in words is "nineteen million, two hundred eighty-nine thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 137 274 411 548 822 1233 1644 2466 3911 4932 7822 11733 15644 23466 35199 46932 70398 140796 535807 1071614 1607421 2143228 3214842 4822263 6429684 9644526 19289052