Search a number
-
+
18245052 = 22327210343
BaseRepresentation
bin100010110011…
…0010110111100
31021022221111200
41011212112330
514132320202
61451015500
7311036400
oct105462674
937287450
1018245052
11a331861
12613a590
133a1a6b7
1425cd100
151905e1c
hex11665bc

18245052 has 54 divisors (see below), whose sum is σ = 53654328. Its totient is φ = 5212368.

The previous prime is 18245047. The next prime is 18245053. The reversal of 18245052 is 25054281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18245053) 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 17 ways as a sum of consecutive naturals, for example, 3408 + ... + 6935.

Almost surely, 218245052 is an apocalyptic number.

18245052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18245052 is an abundant number, since it is smaller than the sum of its proper divisors (35409276).

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

18245052 is a wasteful number, since it uses less digits than its factorization.

18245052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367 (or 10355 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 18245052 is about 4271.4227138039. The cubic root of 18245052 is about 263.2580753090.

The spelling of 18245052 in words is "eighteen million, two hundred forty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 10343 20686 31029 41372 62058 72401 93087 124116 144802 186174 217203 289604 372348 434406 506807 651609 868812 1013614 1303218 1520421 2027228 2606436 3040842 4561263 6081684 9122526 18245052