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18524142 = 23271343263
BaseRepresentation
bin100011010101…
…0011111101110
31021212010100100
41012222133232
514220233032
61501011530
7313311150
oct106523756
937763310
1018524142
11a50250a
126253ba6
133ab7740
142662ad0
15195d97c
hex11aa7ee

18524142 has 96 divisors (see below), whose sum is σ = 50738688. Its totient is φ = 4753728.

The previous prime is 18524117. The next prime is 18524179. The reversal of 18524142 is 24142581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70303 + ... + 70565.

It is an arithmetic number, because the mean of its divisors is an integer number (528528).

Almost surely, 218524142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18524142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25369344).

18524142 is an abundant number, since it is smaller than the sum of its proper divisors (32214546).

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

18524142 is a wasteful number, since it uses less digits than its factorization.

18524142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 331 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 18524142 is about 4303.9681690273. The cubic root of 18524142 is about 264.5936194457.

The spelling of 18524142 in words is "eighteen million, five hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 43 63 78 86 91 117 126 129 182 234 258 263 273 301 387 526 546 559 602 774 789 819 903 1118 1578 1638 1677 1806 1841 2367 2709 3354 3419 3682 3913 4734 5031 5418 5523 6838 7826 10062 10257 11046 11309 11739 16569 20514 22618 23478 23933 30771 33138 33927 35217 47866 61542 67854 70434 71799 79163 101781 143598 147017 158326 203562 215397 237489 294034 430794 441051 474978 712467 882102 1029119 1323153 1424934 2058238 2646306 3087357 6174714 9262071 18524142