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222930324 = 22326192509
BaseRepresentation
bin11010100100110…
…10010110010100
3120112111000220200
431102122112110
5424032232244
634042100500
75344606431
oct1522322624
9515430820
10222930324
11104924941
12627aa730
1337255446
1421870b88
1514888669
hexd49a594

222930324 has 18 divisors (see below), whose sum is σ = 563518410. Its totient is φ = 74310096.

The previous prime is 222930317. The next prime is 222930371. The reversal of 222930324 is 423039222.

It can be written as a sum of positive squares in only one way, i.e., 166410000 + 56520324 = 12900^2 + 7518^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3096219 + ... + 3096290.

Almost surely, 2222930324 is an apocalyptic number.

It is an amenable number.

222930324 is an abundant number, since it is smaller than the sum of its proper divisors (340588086).

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

222930324 is a wasteful number, since it uses less digits than its factorization.

222930324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6192519 (or 6192514 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 222930324 is about 14930.8514157767. The cubic root of 222930324 is about 606.3495353063.

Adding to 222930324 its reverse (423039222), we get a palindrome (645969546).

The spelling of 222930324 in words is "two hundred twenty-two million, nine hundred thirty thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 6192509 12385018 18577527 24770036 37155054 55732581 74310108 111465162 222930324