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18134112 = 2531091733
BaseRepresentation
bin100010100101…
…1010001100000
31021010022022210
41011023101200
514120242422
61444402120
7310065063
oct105132140
937108283
1018134112
11a266477
1260a6340
1339ac059
1425a08da
1518d310c
hex114b460

18134112 has 48 divisors (see below), whose sum is σ = 48066480. Its totient is φ = 5985792.

The previous prime is 18134111. The next prime is 18134119. The reversal of 18134112 is 21143181.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18134111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9598 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (1001385).

Almost surely, 218134112 is an apocalyptic number.

18134112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18134112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24033240).

18134112 is an abundant number, since it is smaller than the sum of its proper divisors (29932368).

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

18134112 is a wasteful number, since it uses less digits than its factorization.

18134112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1847 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

The square root of 18134112 is about 4258.4166071440. The cubic root of 18134112 is about 262.7234052779.

Adding to 18134112 its reverse (21143181), we get a palindrome (39277293).

The spelling of 18134112 in words is "eighteen million, one hundred thirty-four thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 109 218 327 436 654 872 1308 1733 1744 2616 3466 3488 5199 5232 6932 10398 10464 13864 20796 27728 41592 55456 83184 166368 188897 377794 566691 755588 1133382 1511176 2266764 3022352 4533528 6044704 9067056 18134112