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12018384 = 2432711923
BaseRepresentation
bin101101110110…
…001011010000
3211121121010100
4231312023100
511034042014
61105332400
7204104010
oct55661320
924547110
1012018384
116869654
124037100
13264a491
14184bc40
1510c6009
hexb762d0

12018384 has 60 divisors (see below), whose sum is σ = 38442976. Its totient is φ = 3433536.

The previous prime is 12018353. The next prime is 12018401. The reversal of 12018384 is 48381021.

12018384 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4954 + ... + 6969.

Almost surely, 212018384 is an apocalyptic number.

12018384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12018384 is an abundant number, since it is smaller than the sum of its proper divisors (26424592).

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

12018384 is a wasteful number, since it uses less digits than its factorization.

12018384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11944 (or 11935 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12018384 is about 3466.7541014615. The cubic root of 12018384 is about 229.0597023389.

The spelling of 12018384 in words is "twelve million, eighteen thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 11923 23846 35769 47692 71538 83461 95384 107307 143076 166922 190768 214614 250383 286152 333844 429228 500766 572304 667688 751149 858456 1001532 1335376 1502298 1716912 2003064 3004596 4006128 6009192 12018384