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14123215 = 52824643
BaseRepresentation
bin110101111000…
…000011001111
3222120112102001
4311320003033
512103420330
61222413131
7231021361
oct65700317
928515361
1014123215
117a76a87
1248911a7
132c06542
141c38d31
15138e9ca
hexd780cf

14123215 has 4 divisors (see below), whose sum is σ = 16947864. Its totient is φ = 11298568.

The previous prime is 14123191. The next prime is 14123231. The reversal of 14123215 is 51232141.

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 14123215 - 25 = 14123183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14123192 and 14123201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412317 + ... + 1412326.

It is an arithmetic number, because the mean of its divisors is an integer number (4236966).

Almost surely, 214123215 is an apocalyptic number.

14123215 is a deficient number, since it is larger than the sum of its proper divisors (2824649).

14123215 is an equidigital number, since it uses as much as digits as its factorization.

14123215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824648.

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

The square root of 14123215 is about 3758.0866142227. The cubic root of 14123215 is about 241.7192233428.

Adding to 14123215 its reverse (51232141), we get a palindrome (65355356).

The spelling of 14123215 in words is "fourteen million, one hundred twenty-three thousand, two hundred fifteen".

Divisors: 1 5 2824643 14123215