Base | Representation |
---|---|
bin | 11011000111001… |
… | …11110010010101 |
3 | 120211222020111212 |
4 | 31203213302111 |
5 | 431211114223 |
6 | 34322511205 |
7 | 5431136444 |
oct | 1543476225 |
9 | 524866455 |
10 | 227441813 |
11 | 107426445 |
12 | 64205505 |
13 | 38174a71 |
14 | 222c6d5b |
15 | 14e7a278 |
hex | d8e7c95 |
227441813 has 2 divisors, whose sum is σ = 227441814. Its totient is φ = 227441812.
The previous prime is 227441803. The next prime is 227441831. The reversal of 227441813 is 318144722.
Together with next prime (227441831) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 224490289 + 2951524 = 14983^2 + 1718^2 .
It is a cyclic number.
It is not a de Polignac number, because 227441813 - 216 = 227376277 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 227441813.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (227441803) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113720906 + 113720907.
It is an arithmetic number, because the mean of its divisors is an integer number (113720907).
Almost surely, 2227441813 is an apocalyptic number.
It is an amenable number.
227441813 is a deficient number, since it is larger than the sum of its proper divisors (1).
227441813 is an equidigital number, since it uses as much as digits as its factorization.
227441813 is an evil number, because the sum of its binary digits is even.
The product of its digits is 10752, while the sum is 32.
The square root of 227441813 is about 15081.1741253790. The cubic root of 227441813 is about 610.4125248646.
The spelling of 227441813 in words is "two hundred twenty-seven million, four hundred forty-one thousand, eight hundred thirteen".
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