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13209299 = 432771109
BaseRepresentation
bin110010011000…
…111011010011
3220212002202022
4302120323103
511340144144
61151042055
7220164035
oct62307323
926762668
1013209299
117502384
12451032b
13297656c
141a7bc55
15125dcee
hexc98ed3

13209299 has 8 divisors (see below), whose sum is σ = 13577520. Its totient is φ = 12843936.

The previous prime is 13209293. The next prime is 13209307. The reversal of 13209299 is 99290231.

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

It is a de Polignac number, because none of the positive numbers 2k-13209299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13209293) 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, 11357 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (1697190).

Almost surely, 213209299 is an apocalyptic number.

13209299 is a deficient number, since it is larger than the sum of its proper divisors (368221).

13209299 is a wasteful number, since it uses less digits than its factorization.

13209299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13209299 is about 3634.4599323696. The cubic root of 13209299 is about 236.3886335809.

The spelling of 13209299 in words is "thirteen million, two hundred nine thousand, two hundred ninety-nine".

Divisors: 1 43 277 1109 11911 47687 307193 13209299