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13303209 = 34794349
BaseRepresentation
bin110010101111…
…110110101001
3221000212120110
4302233312221
511401200314
61153044533
7221034603
oct62576651
927025513
1013303209
117566997
124556749
1329aa22a
141aa4173
15127ba59
hexcafda9

13303209 has 8 divisors (see below), whose sum is σ = 18115200. Its totient is φ = 8680016.

The previous prime is 13303207. The next prime is 13303219. The reversal of 13303209 is 90230331.

13303209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13303209 - 21 = 13303207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13303207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47034 + ... + 47315.

It is an arithmetic number, because the mean of its divisors is an integer number (2264400).

Almost surely, 213303209 is an apocalyptic number.

It is an amenable number.

13303209 is a deficient number, since it is larger than the sum of its proper divisors (4811991).

13303209 is an equidigital number, since it uses as much as digits as its factorization.

13303209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94399.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 13303209 is about 3647.3564399439. The cubic root of 13303209 is about 236.9475039063.

The spelling of 13303209 in words is "thirteen million, three hundred three thousand, two hundred nine".

Divisors: 1 3 47 141 94349 283047 4434403 13303209