Search a number
-
+
18241764 = 2233149037
BaseRepresentation
bin100010110010…
…1100011100100
31021022202222220
41011211203210
514132214024
61450552340
7311023662
oct105454344
937282886
1018241764
11a32a342
1261386b0
133a19058
1425cbc32
151904e79
hex11658e4

18241764 has 24 divisors (see below), whose sum is σ = 43938048. Its totient is φ = 5884320.

The previous prime is 18241693. The next prime is 18241787. The reversal of 18241764 is 46714281.

It is an unprimeable number.

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, 24147 + ... + 24890.

It is an arithmetic number, because the mean of its divisors is an integer number (1830752).

Almost surely, 218241764 is an apocalyptic number.

It is an amenable number.

18241764 is an abundant number, since it is smaller than the sum of its proper divisors (25696284).

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

18241764 is a wasteful number, since it uses less digits than its factorization.

18241764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49075 (or 49073 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 18241764 is about 4271.0378129911. The cubic root of 18241764 is about 263.2422601617.

The spelling of 18241764 in words is "eighteen million, two hundred forty-one thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 49037 98074 147111 196148 294222 588444 1520147 3040294 4560441 6080588 9120882 18241764