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18132022 = 29066011
BaseRepresentation
bin100010100101…
…0110000110110
31021010012110101
41011022300312
514120211042
61444344314
7310056016
oct105126066
937105411
1018132022
11a264947
1260a509a
1339ab10c
14259dc46
1518d26b7
hex114ac36

18132022 has 4 divisors (see below), whose sum is σ = 27198036. Its totient is φ = 9066010.

The previous prime is 18132019. The next prime is 18132029. The reversal of 18132022 is 22023181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22023181 = 43512167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18132029) 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 as a sum of consecutive naturals, namely, 4533004 + ... + 4533007.

It is an arithmetic number, because the mean of its divisors is an integer number (6799509).

Almost surely, 218132022 is an apocalyptic number.

18132022 is a deficient number, since it is larger than the sum of its proper divisors (9066014).

18132022 is an equidigital number, since it uses as much as digits as its factorization.

18132022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9066013.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 18132022 is about 4258.1712036977. The cubic root of 18132022 is about 262.7133117221.

The spelling of 18132022 in words is "eighteen million, one hundred thirty-two thousand, twenty-two".

Divisors: 1 2 9066011 18132022