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14211331 = 14719661
BaseRepresentation
bin110110001101…
…100100000011
3222202000021121
4312031210003
512114230311
61224333111
7231536311
oct66154403
928660247
1014211331
118027202
124914197
132c37694
141c5d0b1
1513aab71
hexd8d903

14211331 has 4 divisors (see below), whose sum is σ = 14222464. Its totient is φ = 14200200.

The previous prime is 14211319. The next prime is 14211349. The reversal of 14211331 is 13311241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13311241 = 103112911.

It is a cyclic number.

It is not a de Polignac number, because 14211331 - 27 = 14211203 is a prime.

It is a super-2 number, since 2×142113312 = 403923857583122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14211391) 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, 3360 + ... + 6301.

It is an arithmetic number, because the mean of its divisors is an integer number (3555616).

Almost surely, 214211331 is an apocalyptic number.

14211331 is a deficient number, since it is larger than the sum of its proper divisors (11133).

14211331 is an equidigital number, since it uses as much as digits as its factorization.

14211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132.

The product of its digits is 72, while the sum is 16.

The square root of 14211331 is about 3769.7919040711. The cubic root of 14211331 is about 242.2208840917.

Adding to 14211331 its reverse (13311241), we get a palindrome (27522572).

The spelling of 14211331 in words is "fourteen million, two hundred eleven thousand, three hundred thirty-one".

Divisors: 1 1471 9661 14211331