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18412854 = 232924189
BaseRepresentation
bin100011000111…
…1010100110110
31021122110200120
41012033110312
514203202404
61454352410
7312335535
oct106172466
937573616
1018412854
11a436939
1261bb706
133a78ba5
14263431c
15193a9d9
hex118f536

18412854 has 48 divisors (see below), whose sum is σ = 39508560. Its totient is φ = 5716480.

The previous prime is 18412847. The next prime is 18412859. The reversal of 18412854 is 45821481.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18412859) 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, 206842 + ... + 206930.

It is an arithmetic number, because the mean of its divisors is an integer number (823095).

Almost surely, 218412854 is an apocalyptic number.

18412854 is an abundant number, since it is smaller than the sum of its proper divisors (21095706).

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

18412854 is a wasteful number, since it uses less digits than its factorization.

18412854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 164 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 18412854 is about 4291.0201584239. The cubic root of 18412854 is about 264.0626859866.

The spelling of 18412854 in words is "eighteen million, four hundred twelve thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 29 41 58 82 87 89 123 174 178 246 267 534 841 1189 1682 2378 2523 2581 3567 3649 5046 5162 7134 7298 7743 10947 15486 21894 34481 68962 74849 103443 105821 149698 206886 211642 224547 317463 449094 634926 3068809 6137618 9206427 18412854