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13244449 = 127104287
BaseRepresentation
bin110010100001…
…100000100001
3220220212222011
4302201200201
511342310244
61151512521
7220401361
oct62414041
926825864
1013244449
117526829
124528741
13298956a
141a8a9a1
151269434
hexca1821

13244449 has 4 divisors (see below), whose sum is σ = 13348864. Its totient is φ = 13140036.

The previous prime is 13244447. The next prime is 13244453. The reversal of 13244449 is 94444231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13244449 - 21 = 13244447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13244449.

It is not an unprimeable number, because it can be changed into a prime (13244443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52017 + ... + 52270.

It is an arithmetic number, because the mean of its divisors is an integer number (3337216).

Almost surely, 213244449 is an apocalyptic number.

It is an amenable number.

13244449 is a deficient number, since it is larger than the sum of its proper divisors (104415).

13244449 is a wasteful number, since it uses less digits than its factorization.

13244449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104414.

The product of its digits is 13824, while the sum is 31.

The square root of 13244449 is about 3639.2923762732. The cubic root of 13244449 is about 236.5981249198.

The spelling of 13244449 in words is "thirteen million, two hundred forty-four thousand, four hundred forty-nine".

Divisors: 1 127 104287 13244449