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13488649 = 23586463
BaseRepresentation
bin110011011101…
…001000001001
3221101021221121
4303131020021
511423114044
61201035241
7222436336
oct63351011
927337847
1013488649
117683249
124625b21
132a43765
141b1198d
1512b6984
hexcdd209

13488649 has 4 divisors (see below), whose sum is σ = 14075136. Its totient is φ = 12902164.

The previous prime is 13488647. The next prime is 13488653. The reversal of 13488649 is 94688431.

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 13488649 - 21 = 13488647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13488647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 293209 + ... + 293254.

It is an arithmetic number, because the mean of its divisors is an integer number (3518784).

Almost surely, 213488649 is an apocalyptic number.

It is an amenable number.

13488649 is a deficient number, since it is larger than the sum of its proper divisors (586487).

13488649 is an equidigital number, since it uses as much as digits as its factorization.

13488649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586486.

The product of its digits is 165888, while the sum is 43.

The square root of 13488649 is about 3672.6896138933. The cubic root of 13488649 is about 238.0434035663.

The spelling of 13488649 in words is "thirteen million, four hundred eighty-eight thousand, six hundred forty-nine".

Divisors: 1 23 586463 13488649