Base | Representation |
---|---|
bin | 110010011110… |
… | …010010001001 |
3 | 220220012211222 |
4 | 302132102021 |
5 | 11341344431 |
6 | 1151331425 |
7 | 220315022 |
oct | 62362211 |
9 | 26805758 |
10 | 13231241 |
11 | 7517911 |
12 | 4520b75 |
13 | 298354a |
14 | 1a85c49 |
15 | 126557b |
hex | c9e489 |
13231241 has 4 divisors (see below), whose sum is σ = 13335552. Its totient is φ = 13126932.
The previous prime is 13231189. The next prime is 13231247. The reversal of 13231241 is 14213231.
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 13231241 - 218 = 12969097 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13231247) 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, 51965 + ... + 52218.
It is an arithmetic number, because the mean of its divisors is an integer number (3333888).
Almost surely, 213231241 is an apocalyptic number.
It is an amenable number.
13231241 is a deficient number, since it is larger than the sum of its proper divisors (104311).
13231241 is a wasteful number, since it uses less digits than its factorization.
13231241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104310.
The product of its digits is 144, while the sum is 17.
The square root of 13231241 is about 3637.4772851524. The cubic root of 13231241 is about 236.5194497605.
Adding to 13231241 its reverse (14213231), we get a palindrome (27444472).
The spelling of 13231241 in words is "thirteen million, two hundred thirty-one thousand, two hundred forty-one".
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