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18050023 = 28363781
BaseRepresentation
bin100010011011…
…0101111100111
31020222000222101
41010312233213
514110100043
61442512531
7306264655
oct104665747
936860871
1018050023
11a209282
126065747
13397c9b4
14257bdd5
1518b824d
hex1136be7

18050023 has 4 divisors (see below), whose sum is σ = 18114088. Its totient is φ = 17985960.

The previous prime is 18050003. The next prime is 18050027. The reversal of 18050023 is 32005081.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18050023 - 25 = 18049991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31608 + ... + 32173.

It is an arithmetic number, because the mean of its divisors is an integer number (4528522).

Almost surely, 218050023 is an apocalyptic number.

18050023 is a deficient number, since it is larger than the sum of its proper divisors (64065).

18050023 is an equidigital number, since it uses as much as digits as its factorization.

18050023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64064.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 18050023 is about 4248.5318640679. The cubic root of 18050023 is about 262.3166877387.

The spelling of 18050023 in words is "eighteen million, fifty thousand, twenty-three".

Divisors: 1 283 63781 18050023