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13448809 = 114328433
BaseRepresentation
bin110011010011…
…011001101001
3221022021022001
4303103121221
511420330214
61200131001
7222212233
oct63233151
927267261
1013448809
117656320
124606a61
132a2b59a
141b01253
1512a9c74
hexcd3669

13448809 has 8 divisors (see below), whose sum is σ = 15013152. Its totient is φ = 11941440.

The previous prime is 13448791. The next prime is 13448833. The reversal of 13448809 is 90884431.

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 13448809 - 29 = 13448297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13448839) 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, 13744 + ... + 14689.

It is an arithmetic number, because the mean of its divisors is an integer number (1876644).

Almost surely, 213448809 is an apocalyptic number.

It is an amenable number.

13448809 is a deficient number, since it is larger than the sum of its proper divisors (1564343).

13448809 is a wasteful number, since it uses less digits than its factorization.

13448809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28487.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 13448809 is about 3667.2617850380. The cubic root of 13448809 is about 237.8088112188.

It can be divided in two parts, 1344 and 8809, that added together give a triangular number (10153 = T142).

The spelling of 13448809 in words is "thirteen million, four hundred forty-eight thousand, eight hundred nine".

Divisors: 1 11 43 473 28433 312763 1222619 13448809