Base | Representation |
---|---|
bin | 11011100100000… |
… | …00110101110111 |
3 | 121010001220121100 |
4 | 31302000311313 |
5 | 433142330310 |
6 | 34535421143 |
7 | 5505201423 |
oct | 1562006567 |
9 | 533056540 |
10 | 231214455 |
11 | 10957292a |
12 | 655247b3 |
13 | 38b95cb4 |
14 | 229c9b83 |
15 | 15472ec0 |
hex | dc80d77 |
231214455 has 12 divisors (see below), whose sum is σ = 400771800. Its totient is φ = 123314352.
The previous prime is 231214429. The next prime is 231214471. The reversal of 231214455 is 554412132.
It is not a de Polignac number, because 231214455 - 26 = 231214391 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2569005 + ... + 2569094.
It is an arithmetic number, because the mean of its divisors is an integer number (33397650).
Almost surely, 2231214455 is an apocalyptic number.
231214455 is a deficient number, since it is larger than the sum of its proper divisors (169557345).
231214455 is a wasteful number, since it uses less digits than its factorization.
231214455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5138110 (or 5138107 counting only the distinct ones).
The product of its digits is 4800, while the sum is 27.
The square root of 231214455 is about 15205.7375684312. The cubic root of 231214455 is about 613.7690627794.
Adding to 231214455 its reverse (554412132), we get a palindrome (785626587).
The spelling of 231214455 in words is "two hundred thirty-one million, two hundred fourteen thousand, four hundred fifty-five".
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