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344224220 = 22561283997
BaseRepresentation
bin10100100001000…
…111000111011100
3212222201101212012
4110201013013130
51201110133340
654053530352
711346600104
oct2441070734
9788641765
10344224220
1116733a82a
12973439b8
1356413292
1433a06204
1520347565
hex148471dc

344224220 has 48 divisors (see below), whose sum is σ = 738056928. Its totient is φ = 134818560.

The previous prime is 344224219. The next prime is 344224247. The reversal of 344224220 is 22422443.

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 15 ways as a sum of consecutive naturals, for example, 344762 + ... + 345758.

It is an arithmetic number, because the mean of its divisors is an integer number (15376186).

Almost surely, 2344224220 is an apocalyptic number.

It is an amenable number.

344224220 is an abundant number, since it is smaller than the sum of its proper divisors (393832708).

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

344224220 is a wasteful number, since it uses less digits than its factorization.

344224220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 344224220 is about 18553.2805724486. The cubic root of 344224220 is about 700.8318138805.

Adding to 344224220 its reverse (22422443), we get a palindrome (366646663).

The spelling of 344224220 in words is "three hundred forty-four million, two hundred twenty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 283 305 566 610 997 1132 1220 1415 1994 2830 3988 4985 5660 9970 17263 19940 34526 60817 69052 86315 121634 172630 243268 282151 304085 345260 564302 608170 1128604 1216340 1410755 2821510 5643020 17211211 34422422 68844844 86056055 172112110 344224220