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18135160 = 235453379
BaseRepresentation
bin100010100101…
…1100001111000
31021010100202121
41011023201320
514120311120
61444411024
7310101121
oct105134170
937110677
1018135160
11a26723a
1260a6a74
1339ac684
1425a1048
1518d35aa
hex114b878

18135160 has 16 divisors (see below), whose sum is σ = 40804200. Its totient is φ = 7254048.

The previous prime is 18135151. The next prime is 18135163. The reversal of 18135160 is 6153181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18135163) 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, 226650 + ... + 226729.

Almost surely, 218135160 is an apocalyptic number.

18135160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18135160 is an abundant number, since it is smaller than the sum of its proper divisors (22669040).

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

18135160 is a wasteful number, since it uses less digits than its factorization.

18135160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453390 (or 453386 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 18135160 is about 4258.5396557975. The cubic root of 18135160 is about 262.7284662522.

The spelling of 18135160 in words is "eighteen million, one hundred thirty-five thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 453379 906758 1813516 2266895 3627032 4533790 9067580 18135160