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12214135 = 52442827
BaseRepresentation
bin101110100101…
…111101110111
3211222112122101
4232211331313
511111323020
61113442531
7205550503
oct56457567
924875571
1012214135
11699272a
124110447
1326b85cb
14189d303
15111400a
hexba5f77

12214135 has 4 divisors (see below), whose sum is σ = 14656968. Its totient is φ = 9771304.

The previous prime is 12214099. The next prime is 12214159. The reversal of 12214135 is 53141221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53141221 = 77591603.

It is a cyclic number.

It is not a de Polignac number, because 12214135 - 29 = 12213623 is a prime.

It is a Duffinian number.

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, 1221409 + ... + 1221418.

It is an arithmetic number, because the mean of its divisors is an integer number (3664242).

Almost surely, 212214135 is an apocalyptic number.

12214135 is a deficient number, since it is larger than the sum of its proper divisors (2442833).

12214135 is an equidigital number, since it uses as much as digits as its factorization.

12214135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442832.

The product of its digits is 240, while the sum is 19.

The square root of 12214135 is about 3494.8726729310. The cubic root of 12214135 is about 230.2966242194.

Adding to 12214135 its reverse (53141221), we get a palindrome (65355356).

It can be divided in two parts, 1221 and 4135, that added together give a triangular number (5356 = T103).

The spelling of 12214135 in words is "twelve million, two hundred fourteen thousand, one hundred thirty-five".

Divisors: 1 5 2442827 12214135