Search a number
-
+
18044061 = 372929629
BaseRepresentation
bin100010011010…
…1010010011101
31020221201210120
41010311102131
514104402221
61442425153
7306241410
oct104652235
936851716
1018044061
11a204852
1260621b9
13397a079
142579b77
1518b65c6
hex113549d

18044061 has 16 divisors (see below), whose sum is σ = 28444800. Its totient is φ = 9955008.

The previous prime is 18044051. The next prime is 18044063. The reversal of 18044061 is 16044081.

It is not a de Polignac number, because 18044061 - 26 = 18043997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18044063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14206 + ... + 15423.

It is an arithmetic number, because the mean of its divisors is an integer number (1777800).

Almost surely, 218044061 is an apocalyptic number.

It is an amenable number.

18044061 is a deficient number, since it is larger than the sum of its proper divisors (10400739).

18044061 is a wasteful number, since it uses less digits than its factorization.

18044061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29668.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18044061 is about 4247.8301519717. The cubic root of 18044061 is about 262.2878031160.

The spelling of 18044061 in words is "eighteen million, forty-four thousand, sixty-one".

Divisors: 1 3 7 21 29 87 203 609 29629 88887 207403 622209 859241 2577723 6014687 18044061