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18134235 = 3257232503
BaseRepresentation
bin100010100101…
…1010011011011
31021010022111100
41011023103123
514120243420
61444402443
7310065330
oct105132333
937108440
1018134235
11a266579
1260a6423
1339ac122
1425a0987
1518d3190
hex114b4db

18134235 has 48 divisors (see below), whose sum is σ = 37499904. Its totient is φ = 7926336.

The previous prime is 18134201. The next prime is 18134243. The reversal of 18134235 is 53243181.

It is a happy number.

It is not a de Polignac number, because 18134235 - 211 = 18132187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18134199 and 18134208.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5994 + ... + 8496.

It is an arithmetic number, because the mean of its divisors is an integer number (781248).

Almost surely, 218134235 is an apocalyptic number.

18134235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18134235 is an abundant number, since it is smaller than the sum of its proper divisors (19365669).

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

18134235 is a wasteful number, since it uses less digits than its factorization.

18134235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2541 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 18134235 is about 4258.4310491072. The cubic root of 18134235 is about 262.7239992764.

The spelling of 18134235 in words is "eighteen million, one hundred thirty-four thousand, two hundred thirty-five".

Divisors: 1 3 5 7 9 15 21 23 35 45 63 69 105 115 161 207 315 345 483 805 1035 1449 2415 2503 7245 7509 12515 17521 22527 37545 52563 57569 87605 112635 157689 172707 262815 287845 402983 518121 788445 863535 1208949 2014915 2590605 3626847 6044745 18134235