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13444297 = 173197263
BaseRepresentation
bin110011010010…
…010011001001
3221022001002221
4303102103021
511420204142
61200054041
7222163126
oct63222311
927261087
1013444297
117652999
124604321
132a29509
141add74d
1512a8767
hexcd24c9

13444297 has 16 divisors (see below), whose sum is σ = 14902272. Its totient is φ = 12072960.

The previous prime is 13444279. The next prime is 13444307. The reversal of 13444297 is 79244431.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13444297 - 211 = 13442249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13444237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50988 + ... + 51250.

It is an arithmetic number, because the mean of its divisors is an integer number (931392).

Almost surely, 213444297 is an apocalyptic number.

13444297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13444297 is a deficient number, since it is larger than the sum of its proper divisors (1457975).

13444297 is a wasteful number, since it uses less digits than its factorization.

13444297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its digits is 24192, while the sum is 34.

The square root of 13444297 is about 3666.6465605509. The cubic root of 13444297 is about 237.7822137367.

The spelling of 13444297 in words is "thirteen million, four hundred forty-four thousand, two hundred ninety-seven".

Divisors: 1 17 31 97 263 527 1649 3007 4471 8153 25511 51119 138601 433687 790841 13444297