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13744705 = 513211457
BaseRepresentation
bin110100011011…
…101001000001
3221212022012011
4310123221001
512004312310
61210332521
7224554012
oct64335101
927768164
1013744705
117838667
12472a141
132b03180
141b7b009
15131778a
hexd1ba41

13744705 has 8 divisors (see below), whose sum is σ = 17762472. Its totient is φ = 10149888.

The previous prime is 13744693. The next prime is 13744711. The reversal of 13744705 is 50744731.

It can be written as a sum of positive squares in 4 ways, for example, as 261121 + 13483584 = 511^2 + 3672^2 .

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 13744705 - 25 = 13744673 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 105664 + ... + 105793.

It is an arithmetic number, because the mean of its divisors is an integer number (2220309).

Almost surely, 213744705 is an apocalyptic number.

It is an amenable number.

13744705 is a deficient number, since it is larger than the sum of its proper divisors (4017767).

13744705 is a wasteful number, since it uses less digits than its factorization.

13744705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211475.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 13744705 is about 3707.3851971437. The cubic root of 13744705 is about 239.5402367010.

The spelling of 13744705 in words is "thirteen million, seven hundred forty-four thousand, seven hundred five".

Divisors: 1 5 13 65 211457 1057285 2748941 13744705