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18067040 = 255112919
BaseRepresentation
bin100010011101…
…0111001100000
31020222220022122
41010322321200
514111121130
61443123412
7306365405
oct104727140
936886278
1018067040
11a220042
126073568
133987674
1425842ac
1518bd2e5
hex113ae60

18067040 has 24 divisors (see below), whose sum is σ = 42683760. Its totient is φ = 7226752.

The previous prime is 18067037. The next prime is 18067061. The reversal of 18067040 is 4076081.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56300 + ... + 56619.

It is an arithmetic number, because the mean of its divisors is an integer number (1778490).

Almost surely, 218067040 is an apocalyptic number.

18067040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18067040 is an abundant number, since it is smaller than the sum of its proper divisors (24616720).

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

18067040 is a wasteful number, since it uses less digits than its factorization.

18067040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112934 (or 112926 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18067040 is about 4250.5340840887. The cubic root of 18067040 is about 262.3990965168.

The spelling of 18067040 in words is "eighteen million, sixty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 112919 225838 451676 564595 903352 1129190 1806704 2258380 3613408 4516760 9033520 18067040