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18134514 = 2323773373
BaseRepresentation
bin100010100101…
…1010111110010
31021010022212200
41011023113302
514120301024
61444404030
7310066206
oct105132762
937108780
1018134514
11a266802
1260a6616
1339ac2a8
1425a0b06
1518d32c9
hex114b5f2

18134514 has 48 divisors (see below), whose sum is σ = 41015832. Its totient is φ = 5785344.

The previous prime is 18134513. The next prime is 18134521. The reversal of 18134514 is 41543181.

It is a happy number.

18134514 is a `hidden beast` number, since 18 + 134 + 514 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17918289 + 216225 = 4233^2 + 465^2 .

It is not an unprimeable number, because it can be changed into a prime (18134513) 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 23 ways as a sum of consecutive naturals, for example, 48432 + ... + 48804.

Almost surely, 218134514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18134514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20507916).

18134514 is an abundant number, since it is smaller than the sum of its proper divisors (22881318).

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

18134514 is a wasteful number, since it uses less digits than its factorization.

18134514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 488 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 18134514 is about 4258.4638075250. The cubic root of 18134514 is about 262.7253466289.

Adding to 18134514 its reverse (41543181), we get a palindrome (59677695).

The spelling of 18134514 in words is "eighteen million, one hundred thirty-four thousand, five hundred fourteen".

Divisors: 1 2 3 6 9 18 37 73 74 111 146 219 222 333 373 438 657 666 746 1119 1314 2238 2701 3357 5402 6714 8103 13801 16206 24309 27229 27602 41403 48618 54458 81687 82806 124209 163374 245061 248418 490122 1007473 2014946 3022419 6044838 9067257 18134514