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BaseRepresentation
bin100011011101001
3220220100
410123221
51040103
6220013
7103632
oct43351
926810
1018153
1112703
12a609
138355
146889
1555a3
hex46e9

18153 has 6 divisors (see below), whose sum is σ = 26234. Its totient is φ = 12096.

The previous prime is 18149. The next prime is 18169. The reversal of 18153 is 35181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17424 + 729 = 132^2 + 27^2 .

It is not a de Polignac number, because 18153 - 22 = 18149 is a prime.

It is a Duffinian number.

It is a Curzon number.

18153 is a lucky number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 18153.

It is not an unprimeable number, because it can be changed into a prime (18133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1000 + ... + 1017.

218153 is an apocalyptic number.

It is an amenable number.

18153 is a deficient number, since it is larger than the sum of its proper divisors (8081).

18153 is a wasteful number, since it uses less digits than its factorization.

18153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2020 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 18153 is about 134.7330694373. The cubic root of 18153 is about 26.2814588822.

It can be divided in two parts, 1815 and 3, that multiplied together give a palindrome (5445).

The spelling of 18153 in words is "eighteen thousand, one hundred fifty-three".

Divisors: 1 3 9 2017 6051 18153