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18030966 = 233005161
BaseRepresentation
bin100010011001…
…0000101110110
31020221001211120
41010302011312
514103442331
61442244410
7306155262
oct104620566
936831746
1018030966
11a1a5a28
126056706
133974115
1425750a2
1518b2796
hex1132176

18030966 has 8 divisors (see below), whose sum is σ = 36061944. Its totient is φ = 6010320.

The previous prime is 18030959. The next prime is 18030967. The reversal of 18030966 is 66903081.

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

18030966 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030967) 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 3 ways as a sum of consecutive naturals, for example, 1502575 + ... + 1502586.

It is an arithmetic number, because the mean of its divisors is an integer number (4507743).

Almost surely, 218030966 is an apocalyptic number.

18030966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18030966 is a wasteful number, since it uses less digits than its factorization.

18030966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005166.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 18030966 is about 4246.2884970289. The cubic root of 18030966 is about 262.2243382824.

The spelling of 18030966 in words is "eighteen million, thirty thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 3005161 6010322 9015483 18030966