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2214247 = 7316321
BaseRepresentation
bin1000011100100101100111
311011111101011
420130211213
51031323442
6115243051
724551350
oct10344547
94144334
102214247
111282662
128a9487
135c6b09
14418d27
152db117
hex21c967

2214247 has 4 divisors (see below), whose sum is σ = 2530576. Its totient is φ = 1897920.

The previous prime is 2214221. The next prime is 2214257. The reversal of 2214247 is 7424122.

It is a happy number.

2214247 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 a de Polignac number, because none of the positive numbers 2k-2214247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214257) 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, 158154 + ... + 158167.

It is an arithmetic number, because the mean of its divisors is an integer number (632644).

22214247 is an apocalyptic number.

2214247 is a deficient number, since it is larger than the sum of its proper divisors (316329).

2214247 is an equidigital number, since it uses as much as digits as its factorization.

2214247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316328.

The product of its digits is 896, while the sum is 22.

The square root of 2214247 is about 1488.0346098126. The cubic root of 2214247 is about 130.3392912172.

Adding to 2214247 its reverse (7424122), we get a palindrome (9638369).

The spelling of 2214247 in words is "two million, two hundred fourteen thousand, two hundred forty-seven".

Divisors: 1 7 316321 2214247