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13297223 = 53892819
BaseRepresentation
bin110010101110…
…011001000111
3221000120100202
4302232121013
511401002343
61153001115
7221011262
oct62563107
927016322
1013297223
117562445
12455319b
1329a75a4
141aa1cd9
151279db8
hexcae647

13297223 has 8 divisors (see below), whose sum is σ = 13705200. Its totient is φ = 12895168.

The previous prime is 13297183. The next prime is 13297231. The reversal of 13297223 is 32279231.

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 13297223 - 26 = 13297159 is a prime.

It is a super-2 number, since 2×132972232 = 353632279023458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13297253) 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, 3308 + ... + 6126.

It is an arithmetic number, because the mean of its divisors is an integer number (1713150).

Almost surely, 213297223 is an apocalyptic number.

13297223 is a deficient number, since it is larger than the sum of its proper divisors (407977).

13297223 is an equidigital number, since it uses as much as digits as its factorization.

13297223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961.

The product of its digits is 4536, while the sum is 29.

The square root of 13297223 is about 3646.5357532869. The cubic root of 13297223 is about 236.9119590852.

The spelling of 13297223 in words is "thirteen million, two hundred ninety-seven thousand, two hundred twenty-three".

Divisors: 1 53 89 2819 4717 149407 250891 13297223