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18000795 = 3561103191
BaseRepresentation
bin100010010101…
…0101110011011
31020212112110010
41010222232123
514102011140
61441453003
7306001311
oct104525633
936775403
1018000795
11a18529a
126041163
133963477
1425680b1
1518a8880
hex112ab9b

18000795 has 32 divisors (see below), whose sum is σ = 29712384. Its totient is φ = 9302400.

The previous prime is 18000779. The next prime is 18000797. The reversal of 18000795 is 59700081.

It is not a de Polignac number, because 18000795 - 24 = 18000779 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18000797) 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 31 ways as a sum of consecutive naturals, for example, 94150 + ... + 94340.

It is an arithmetic number, because the mean of its divisors is an integer number (928512).

Almost surely, 218000795 is an apocalyptic number.

18000795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18000795 is a deficient number, since it is larger than the sum of its proper divisors (11711589).

18000795 is a wasteful number, since it uses less digits than its factorization.

18000795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 18000795 is about 4242.7343777333. The cubic root of 18000795 is about 262.0779976778.

The spelling of 18000795 in words is "eighteen million, seven hundred ninety-five", and thus it is an aban number.

Divisors: 1 3 5 15 61 103 183 191 305 309 515 573 915 955 1545 2865 6283 11651 18849 19673 31415 34953 58255 59019 94245 98365 174765 295095 1200053 3600159 6000265 18000795