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18144192 = 26311371
BaseRepresentation
bin100010100110…
…1101111000000
31021010211011010
41011031233000
514121103232
61444520520
7310136343
oct105155700
937124133
1018144192
11a273000
1260b0140
1339b3811
1425a445a
1518d60cc
hex114dbc0

18144192 has 112 divisors (see below), whose sum is σ = 53547264. Its totient is φ = 5420800.

The previous prime is 18144173. The next prime is 18144193. The reversal of 18144192 is 29144181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18144193) 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 15 ways as a sum of consecutive naturals, for example, 255517 + ... + 255587.

Almost surely, 218144192 is an apocalyptic number.

18144192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18144192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26773632).

18144192 is an abundant number, since it is smaller than the sum of its proper divisors (35403072).

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

18144192 is an equidigital number, since it uses as much as digits as its factorization.

18144192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 87 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 18144192 is about 4259.5999812189. The cubic root of 18144192 is about 262.7720752724.

It can be divided in two parts, 18144 and 192, that added together give a triangular number (18336 = T191).

The spelling of 18144192 in words is "eighteen million, one hundred forty-four thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 71 88 96 121 132 142 176 192 213 242 264 284 352 363 426 484 528 568 704 726 781 852 968 1056 1136 1331 1452 1562 1704 1936 2112 2272 2343 2662 2904 3124 3408 3872 3993 4544 4686 5324 5808 6248 6816 7744 7986 8591 9372 10648 11616 12496 13632 15972 17182 18744 21296 23232 24992 25773 31944 34364 37488 42592 49984 51546 63888 68728 74976 85184 94501 103092 127776 137456 149952 189002 206184 255552 274912 283503 378004 412368 549824 567006 756008 824736 1134012 1512016 1649472 2268024 3024032 4536048 6048064 9072096 18144192