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18334245 = 351771899
BaseRepresentation
bin100010111110…
…0001000100101
31021111110212010
41011330020211
514143143440
61452544433
7311560416
oct105741045
937443763
1018334245
11a392876
126182119
133a4c187
14261380d
151922580
hex117c225

18334245 has 16 divisors (see below), whose sum is σ = 31060800. Its totient is φ = 9202944.

The previous prime is 18334231. The next prime is 18334247. The reversal of 18334245 is 54243381.

It is not a de Polignac number, because 18334245 - 24 = 18334229 is a prime.

It is a super-2 number, since 2×183342452 = 672289079440050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18334247) 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, 35695 + ... + 36204.

It is an arithmetic number, because the mean of its divisors is an integer number (1941300).

Almost surely, 218334245 is an apocalyptic number.

18334245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18334245 is a deficient number, since it is larger than the sum of its proper divisors (12726555).

18334245 is a wasteful number, since it uses less digits than its factorization.

18334245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71924.

The product of its digits is 11520, while the sum is 30.

The square root of 18334245 is about 4281.8506512955. The cubic root of 18334245 is about 263.6863671052.

The spelling of 18334245 in words is "eighteen million, three hundred thirty-four thousand, two hundred forty-five".

Divisors: 1 3 5 15 17 51 85 255 71899 215697 359495 1078485 1222283 3666849 6111415 18334245