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214430441 = 316917111
BaseRepresentation
bin11001100011111…
…11001011101001
3112221111012021012
430301333023221
5414343233231
633135553305
75212425431
oct1461771351
9487435235
10214430441
11100049845
125b98b835
133556a624
142069b2c1
1513c59e2b
hexcc7f2e9

214430441 has 4 divisors (see below), whose sum is σ = 221347584. Its totient is φ = 207513300.

The previous prime is 214430423. The next prime is 214430467. The reversal of 214430441 is 144034412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-214430441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214430471) by changing a digit.

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, 3458525 + ... + 3458586.

It is an arithmetic number, because the mean of its divisors is an integer number (55336896).

Almost surely, 2214430441 is an apocalyptic number.

It is an amenable number.

214430441 is a deficient number, since it is larger than the sum of its proper divisors (6917143).

214430441 is an equidigital number, since it uses as much as digits as its factorization.

214430441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917142.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 214430441 is about 14643.4436182204. The cubic root of 214430441 is about 598.5431702376.

Adding to 214430441 its reverse (144034412), we get a palindrome (358464853).

The spelling of 214430441 in words is "two hundred fourteen million, four hundred thirty thousand, four hundred forty-one".

Divisors: 1 31 6917111 214430441