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12203411 = 111109401
BaseRepresentation
bin101110100011…
…010110010011
3211221222221012
4232203112103
511111002121
61113321135
7205504313
oct56432623
924858835
1012203411
116985670
1241061ab
1326b376c
141899443
151110c5b
hexba3593

12203411 has 4 divisors (see below), whose sum is σ = 13312824. Its totient is φ = 11094000.

The previous prime is 12203393. The next prime is 12203417. The reversal of 12203411 is 11430221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11430221 = 111039111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12203411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203417) by changing a digit.

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, 554690 + ... + 554711.

It is an arithmetic number, because the mean of its divisors is an integer number (3328206).

Almost surely, 212203411 is an apocalyptic number.

12203411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12203411 is a deficient number, since it is larger than the sum of its proper divisors (1109413).

12203411 is a wasteful number, since it uses less digits than its factorization.

12203411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109412.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12203411 is about 3493.3380884192. The cubic root of 12203411 is about 230.2292044048.

Adding to 12203411 its reverse (11430221), we get a palindrome (23633632).

The spelling of 12203411 in words is "twelve million, two hundred three thousand, four hundred eleven".

Divisors: 1 11 1109401 12203411