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18324370 = 2513913183
BaseRepresentation
bin100010111100…
…1101110010010
31021110222022101
41011321232102
514142334440
61452431014
7311516551
oct105715622
937428271
1018324370
11a386409
12617846a
133a4782c
14260dd98
15191e69a
hex1179b92

18324370 has 16 divisors (see below), whose sum is σ = 33223680. Its totient is φ = 7276464.

The previous prime is 18324347. The next prime is 18324373. The reversal of 18324370 is 7342381.

It is not an unprimeable number, because it can be changed into a prime (18324373) 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 7 ways as a sum of consecutive naturals, for example, 5202 + ... + 7981.

It is an arithmetic number, because the mean of its divisors is an integer number (2076480).

Almost surely, 218324370 is an apocalyptic number.

18324370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18324370 is a deficient number, since it is larger than the sum of its proper divisors (14899310).

18324370 is a wasteful number, since it uses less digits than its factorization.

18324370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13329.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 18324370 is about 4280.6973730924. The cubic root of 18324370 is about 263.6390172687.

The spelling of 18324370 in words is "eighteen million, three hundred twenty-four thousand, three hundred seventy".

Divisors: 1 2 5 10 139 278 695 1390 13183 26366 65915 131830 1832437 3664874 9162185 18324370