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19284134 = 221145697
BaseRepresentation
bin100100110010…
…0000010100110
31100021201212012
41021210002212
514414043014
61525154222
7322624652
oct111440246
940251765
1019284134
11a981501
12655b972
133cc263c
1427bda62
151a5dc3e
hex12640a6

19284134 has 8 divisors (see below), whose sum is σ = 29063928. Its totient is φ = 9596160.

The previous prime is 19284131. The next prime is 19284149. The reversal of 19284134 is 43148291.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19284134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19284131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22427 + ... + 23270.

It is an arithmetic number, because the mean of its divisors is an integer number (3632991).

Almost surely, 219284134 is an apocalyptic number.

19284134 is a deficient number, since it is larger than the sum of its proper divisors (9779794).

19284134 is a wasteful number, since it uses less digits than its factorization.

19284134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45910.

The product of its digits is 6912, while the sum is 32.

The square root of 19284134 is about 4391.3704011390. The cubic root of 19284134 is about 268.1637356171.

The spelling of 19284134 in words is "nineteen million, two hundred eighty-four thousand, one hundred thirty-four".

Divisors: 1 2 211 422 45697 91394 9642067 19284134