Base | Representation |
---|---|
bin | 110011010001… |
… | …100011001111 |
3 | 221021212220101 |
4 | 303101203033 |
5 | 11420104411 |
6 | 1200031531 |
7 | 222151156 |
oct | 63214317 |
9 | 27255811 |
10 | 13441231 |
11 | 7650661 |
12 | 46025a7 |
13 | 2a27cbb |
14 | 1adc59d |
15 | 12a78c1 |
hex | cd18cf |
13441231 has 4 divisors (see below), whose sum is σ = 13458312. Its totient is φ = 13424152.
The previous prime is 13441213. The next prime is 13441247. The reversal of 13441231 is 13214431.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13214431 = 359 ⋅36809.
It is a cyclic number.
It is not a de Polignac number, because 13441231 - 213 = 13433039 is a prime.
It is a super-2 number, since 2×134412312 = 361333381590722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13441199 and 13441208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13441261) 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 3 ways as a sum of consecutive naturals, for example, 7300 + ... + 8953.
It is an arithmetic number, because the mean of its divisors is an integer number (3364578).
Almost surely, 213441231 is an apocalyptic number.
13441231 is a deficient number, since it is larger than the sum of its proper divisors (17081).
13441231 is an equidigital number, since it uses as much as digits as its factorization.
13441231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17080.
The product of its digits is 288, while the sum is 19.
The square root of 13441231 is about 3666.2284435098. The cubic root of 13441231 is about 237.7641367857.
Adding to 13441231 its reverse (13214431), we get a palindrome (26655662).
The spelling of 13441231 in words is "thirteen million, four hundred forty-one thousand, two hundred thirty-one".
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