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12163355 = 52432671
BaseRepresentation
bin101110011001…
…100100011011
3211212221222122
4232121210123
511103211410
61112411455
7205246451
oct56314433
924787878
1012163355
116958566
1240a6b8b
13269b469
1418889d1
151103e55
hexb9991b

12163355 has 4 divisors (see below), whose sum is σ = 14596032. Its totient is φ = 9730680.

The previous prime is 12163351. The next prime is 12163357. The reversal of 12163355 is 55336121.

12163355 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12163355 - 22 = 12163351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12163351) 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, 1216331 + ... + 1216340.

It is an arithmetic number, because the mean of its divisors is an integer number (3649008).

Almost surely, 212163355 is an apocalyptic number.

12163355 is a deficient number, since it is larger than the sum of its proper divisors (2432677).

12163355 is an equidigital number, since it uses as much as digits as its factorization.

12163355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432676.

The product of its digits is 2700, while the sum is 26.

The square root of 12163355 is about 3487.6001777727. The cubic root of 12163355 is about 229.9770298421.

Adding to 12163355 its reverse (55336121), we get a palindrome (67499476).

The spelling of 12163355 in words is "twelve million, one hundred sixty-three thousand, three hundred fifty-five".

Divisors: 1 5 2432671 12163355