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12193223 = 75033463
BaseRepresentation
bin101110100000…
…110111000111
3211221110221212
4232200313013
511110140343
61113202035
7205432520
oct56406707
924843855
1012193223
116978a49
12410031b
1326abc33
141895847
15110cc18
hexba0dc7

12193223 has 8 divisors (see below), whose sum is σ = 13966848. Its totient is φ = 10427544.

The previous prime is 12193211. The next prime is 12193241. The reversal of 12193223 is 32239121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12193223 - 218 = 11931079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193273) 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 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 5252.

It is an arithmetic number, because the mean of its divisors is an integer number (1745856).

Almost surely, 212193223 is an apocalyptic number.

12193223 is a deficient number, since it is larger than the sum of its proper divisors (1773625).

12193223 is an equidigital number, since it uses as much as digits as its factorization.

12193223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973.

The product of its digits is 648, while the sum is 23.

The square root of 12193223 is about 3491.8795798252. The cubic root of 12193223 is about 230.1651177280.

The spelling of 12193223 in words is "twelve million, one hundred ninety-three thousand, two hundred twenty-three".

Divisors: 1 7 503 3463 3521 24241 1741889 12193223