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214400244 = 22317866687
BaseRepresentation
bin11001100011101…
…11110011110100
3112221102122211210
430301313303310
5414341301434
633135201420
75212241412
oct1461676364
9487378753
10214400244
11100029093
125b976270
1335559966
14206902b2
1513c50ee9
hexcc77cf4

214400244 has 12 divisors (see below), whose sum is σ = 500267264. Its totient is φ = 71466744.

The previous prime is 214400239. The next prime is 214400261. The reversal of 214400244 is 442004412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 214400244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8933332 + ... + 8933355.

Almost surely, 2214400244 is an apocalyptic number.

It is an amenable number.

214400244 is an abundant number, since it is smaller than the sum of its proper divisors (285867020).

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

214400244 is a wasteful number, since it uses less digits than its factorization.

214400244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17866694 (or 17866692 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 214400244 is about 14642.4125061412. The cubic root of 214400244 is about 598.5150724599.

Adding to 214400244 its reverse (442004412), we get a palindrome (656404656).

The spelling of 214400244 in words is "two hundred fourteen million, four hundred thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 17866687 35733374 53600061 71466748 107200122 214400244