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222201304 = 231331413
BaseRepresentation
bin11010011111010…
…00010111011000
3120111002222212221
431033220113120
5423340420204
634014313424
75335452133
oct1517502730
9514088787
10222201304
11104477146
12624b8874
133705b680
142172121a
1514792654
hexd3e85d8

222201304 has 64 divisors (see below), whose sum is σ = 474727680. Its totient is φ = 96825600.

The previous prime is 222201299. The next prime is 222201307. The reversal of 222201304 is 403102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5419524 + ... + 5419564.

It is an arithmetic number, because the mean of its divisors is an integer number (7417620).

Almost surely, 2222201304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222201304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237363840).

222201304 is an abundant number, since it is smaller than the sum of its proper divisors (252526376).

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

222201304 is an equidigital number, since it uses as much as digits as its factorization.

222201304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222201304 is about 14906.4182149838. The cubic root of 222201304 is about 605.6878582148.

Adding to 222201304 its reverse (403102222), we get a palindrome (625303526).

The spelling of 222201304 in words is "two hundred twenty-two million, two hundred one thousand, three hundred four".

Divisors: 1 2 4 8 13 26 31 41 52 62 82 104 124 164 248 328 403 533 806 1066 1271 1612 1681 2132 2542 3224 3362 4264 5084 6724 10168 13448 16523 21853 33046 43706 52111 66092 68921 87412 104222 132184 137842 174824 208444 275684 416888 551368 677443 895973 1354886 1791946 2136551 2709772 3583892 4273102 5419544 7167784 8546204 17092408 27775163 55550326 111100652 222201304