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18144054 = 2332771213
BaseRepresentation
bin100010100110…
…1101100110110
31021010210222000
41011031230312
514121102204
61444520130
7310136055
oct105155466
937123860
1018144054
11a272995
1260b0046
1339b3736
1425a439c
1518d6039
hex114db36

18144054 has 32 divisors (see below), whose sum is σ = 40499040. Its totient is φ = 6021216.

The previous prime is 18144043. The next prime is 18144059. The reversal of 18144054 is 45044181.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18144059) 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 15 ways as a sum of consecutive naturals, for example, 14352 + ... + 15564.

It is an arithmetic number, because the mean of its divisors is an integer number (1265595).

Almost surely, 218144054 is an apocalyptic number.

18144054 is an abundant number, since it is smaller than the sum of its proper divisors (22354986).

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

18144054 is a wasteful number, since it uses less digits than its factorization.

18144054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1495 counting only the distinct ones).

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

The square root of 18144054 is about 4259.5837824839. The cubic root of 18144054 is about 262.7714090787.

It can be divided in two parts, 1814405 and 4, that added together give a square (1814409 = 13472).

The spelling of 18144054 in words is "eighteen million, one hundred forty-four thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 54 277 554 831 1213 1662 2426 2493 3639 4986 7278 7479 10917 14958 21834 32751 65502 336001 672002 1008003 2016006 3024009 6048018 9072027 18144054