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18080193 = 311535227
BaseRepresentation
bin100010011111…
…0000111000001
31021000120100210
41010332013001
514112031233
61443304333
7306451635
oct104760701
937016323
1018080193
11a229a0a
12607b0a9
133990651
142588dc5
1518c2163
hex113e1c1

18080193 has 8 divisors (see below), whose sum is σ = 24132448. Its totient is φ = 12040704.

The previous prime is 18080149. The next prime is 18080203. The reversal of 18080193 is 39108081.

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

It is not a de Polignac number, because 18080193 - 213 = 18072001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18080193.

It is not an unprimeable number, because it can be changed into a prime (18080143) 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 7 ways as a sum of consecutive naturals, for example, 846 + ... + 6072.

It is an arithmetic number, because the mean of its divisors is an integer number (3016556).

Almost surely, 218080193 is an apocalyptic number.

It is an amenable number.

18080193 is a deficient number, since it is larger than the sum of its proper divisors (6052255).

18080193 is a wasteful number, since it uses less digits than its factorization.

18080193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 18080193 is about 4252.0810199242. The cubic root of 18080193 is about 262.4627575282.

The spelling of 18080193 in words is "eighteen million, eighty thousand, one hundred ninety-three".

Divisors: 1 3 1153 3459 5227 15681 6026731 18080193