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224305240 = 2355607631
BaseRepresentation
bin11010101111010…
…10000001011000
3120122001212221111
431113222001120
5424410231430
634131350104
75362364065
oct1527520130
9518055844
10224305240
11105683935
1263152334
13376171c3
1421b0bc6c
1514a5ac2a
hexd5ea058

224305240 has 16 divisors (see below), whose sum is σ = 504686880. Its totient is φ = 89722080.

The previous prime is 224305199. The next prime is 224305247. The reversal of 224305240 is 42503422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224305247) 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 3 ways as a sum of consecutive naturals, for example, 2803776 + ... + 2803855.

It is an arithmetic number, because the mean of its divisors is an integer number (31542930).

Almost surely, 2224305240 is an apocalyptic number.

224305240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224305240 is an abundant number, since it is smaller than the sum of its proper divisors (280381640).

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

224305240 is a wasteful number, since it uses less digits than its factorization.

224305240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607642 (or 5607638 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 224305240 is about 14976.8234282173. The cubic root of 224305240 is about 607.5935288154.

Adding to 224305240 its reverse (42503422), we get a palindrome (266808662).

The spelling of 224305240 in words is "two hundred twenty-four million, three hundred five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 5607631 11215262 22430524 28038155 44861048 56076310 112152620 224305240