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2214431 = 19116549
BaseRepresentation
bin1000011100101000011111
311011111121222
420130220133
51031330211
6115243555
724552032
oct10345037
94144558
102214431
11128280a
128a95bb
135c6c1b
14419019
152db1db
hex21ca1f

2214431 has 4 divisors (see below), whose sum is σ = 2331000. Its totient is φ = 2097864.

The previous prime is 2214383. The next prime is 2214473. The reversal of 2214431 is 1344122.

2214431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2214431 - 26 = 2214367 is a prime.

It is a super-2 number, since 2×22144312 = 9807409307522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58256 + ... + 58293.

It is an arithmetic number, because the mean of its divisors is an integer number (582750).

22214431 is an apocalyptic number.

2214431 is a deficient number, since it is larger than the sum of its proper divisors (116569).

2214431 is a wasteful number, since it uses less digits than its factorization.

2214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116568.

The product of its digits is 192, while the sum is 17.

The square root of 2214431 is about 1488.0964350471. The cubic root of 2214431 is about 130.3429014386.

Adding to 2214431 its reverse (1344122), we get a palindrome (3558553).

The spelling of 2214431 in words is "two million, two hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 19 116549 2214431