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18232023 = 39762653
BaseRepresentation
bin100010110001…
…1001011010111
31021022021122010
41011203023113
514131411043
61450435303
7310653405
oct105431327
937267563
1018232023
11a322a97
126132b33
133a147a4
1425c8475
151902133
hex11632d7

18232023 has 8 divisors (see below), whose sum is σ = 24560368. Its totient is φ = 12029184.

The previous prime is 18232021. The next prime is 18232063. The reversal of 18232023 is 32023281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18232023 - 21 = 18232021 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 (18232021) 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, 31036 + ... + 31617.

It is an arithmetic number, because the mean of its divisors is an integer number (3070046).

Almost surely, 218232023 is an apocalyptic number.

18232023 is a deficient number, since it is larger than the sum of its proper divisors (6328345).

18232023 is an equidigital number, since it uses as much as digits as its factorization.

18232023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62753.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 18232023 is about 4269.8973055567. The cubic root of 18232023 is about 263.1953951871.

The spelling of 18232023 in words is "eighteen million, two hundred thirty-two thousand, twenty-three".

Divisors: 1 3 97 291 62653 187959 6077341 18232023