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18229468 = 224999133
BaseRepresentation
bin100010110001…
…0100011011100
31021022011010111
41011202203130
514131320333
61450415404
7310643065
oct105424334
937264114
1018229468
11a321084
126131564
133a1358a
1425c756c
1519014cd
hex11628dc

18229468 has 12 divisors (see below), whose sum is σ = 31969000. Its totient is φ = 9095472.

The previous prime is 18229459. The next prime is 18229469. The reversal of 18229468 is 86492281.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18229468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18229469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571 + ... + 6562.

Almost surely, 218229468 is an apocalyptic number.

It is an amenable number.

18229468 is a deficient number, since it is larger than the sum of its proper divisors (13739532).

18229468 is a wasteful number, since it uses less digits than its factorization.

18229468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9636 (or 9634 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 18229468 is about 4269.5981075506. The cubic root of 18229468 is about 263.1831000503.

The spelling of 18229468 in words is "eighteen million, two hundred twenty-nine thousand, four hundred sixty-eight".

Divisors: 1 2 4 499 998 1996 9133 18266 36532 4557367 9114734 18229468