Search a number
-
+
18234294 = 23131571489
BaseRepresentation
bin100010110001…
…1101110110110
31021022101202020
41011203232312
514131444134
61450454010
7310663131
oct105435666
937271666
1018234294
11a324771
126134306
133a15830
1425c9218
151902b49
hex1163bb6

18234294 has 32 divisors (see below), whose sum is σ = 39550560. Its totient is φ = 5571072.

The previous prime is 18234287. The next prime is 18234313. The reversal of 18234294 is 49243281.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11502 + ... + 12990.

It is an arithmetic number, because the mean of its divisors is an integer number (1235955).

Almost surely, 218234294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18234294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19775280).

18234294 is an abundant number, since it is smaller than the sum of its proper divisors (21316266).

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

18234294 is a wasteful number, since it uses less digits than its factorization.

18234294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its digits is 13824, while the sum is 33.

The square root of 18234294 is about 4270.1632287303. The cubic root of 18234294 is about 263.2063226987.

It can be divided in two parts, 18234 and 294, that added together give a triangular number (18528 = T192).

The spelling of 18234294 in words is "eighteen million, two hundred thirty-four thousand, two hundred ninety-four".

Divisors: 1 2 3 6 13 26 39 78 157 314 471 942 1489 2041 2978 4082 4467 6123 8934 12246 19357 38714 58071 116142 233773 467546 701319 1402638 3039049 6078098 9117147 18234294