Base | Representation |
---|---|
bin | 100100001011100… |
… | …1101100001100101 |
3 | 10010121102211122021 |
4 | 1020113031201211 |
5 | 4441243404021 |
6 | 320245103141 |
7 | 42041130433 |
oct | 11027154145 |
9 | 3117384567 |
10 | 1214044261 |
11 | 573329471 |
12 | 29a6b7ab1 |
13 | 1646a0ab1 |
14 | b7347d53 |
15 | 718b1c41 |
hex | 485cd865 |
1214044261 has 2 divisors, whose sum is σ = 1214044262. Its totient is φ = 1214044260.
The previous prime is 1214044231. The next prime is 1214044267. The reversal of 1214044261 is 1624404121.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 636603361 + 577440900 = 25231^2 + 24030^2 .
It is a cyclic number.
It is not a de Polignac number, because 1214044261 - 25 = 1214044229 is a prime.
It is a super-2 number, since 2×12140442612 = 2947806935334072242, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1214044267) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607022130 + 607022131.
It is an arithmetic number, because the mean of its divisors is an integer number (607022131).
Almost surely, 21214044261 is an apocalyptic number.
It is an amenable number.
1214044261 is a deficient number, since it is larger than the sum of its proper divisors (1).
1214044261 is an equidigital number, since it uses as much as digits as its factorization.
1214044261 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1536, while the sum is 25.
The square root of 1214044261 is about 34843.1379327408. The cubic root of 1214044261 is about 1066.7881268699.
Adding to 1214044261 its reverse (1624404121), we get a palindrome (2838448382).
The spelling of 1214044261 in words is "one billion, two hundred fourteen million, forty-four thousand, two hundred sixty-one".
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