Base | Representation |
---|---|
bin | 101111011101… |
… | …110001110101 |
3 | 212102011020021 |
4 | 233131301311 |
5 | 11141131431 |
6 | 1122405141 |
7 | 210522133 |
oct | 57356165 |
9 | 25364207 |
10 | 12442741 |
11 | 7029463 |
12 | 42007b1 |
13 | 276868c |
14 | 191c753 |
15 | 115bb11 |
hex | bddc75 |
12442741 has 2 divisors, whose sum is σ = 12442742. Its totient is φ = 12442740.
The previous prime is 12442699. The next prime is 12442763. The reversal of 12442741 is 14724421.
12442741 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 9394225 + 3048516 = 3065^2 + 1746^2 .
It is an emirp because it is prime and its reverse (14724421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12442741 - 211 = 12440693 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12440741) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221370 + 6221371.
It is an arithmetic number, because the mean of its divisors is an integer number (6221371).
Almost surely, 212442741 is an apocalyptic number.
It is an amenable number.
12442741 is a deficient number, since it is larger than the sum of its proper divisors (1).
12442741 is an equidigital number, since it uses as much as digits as its factorization.
12442741 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1792, while the sum is 25.
The square root of 12442741 is about 3527.4269659342. The cubic root of 12442741 is about 231.7245355725.
The spelling of 12442741 in words is "twelve million, four hundred forty-two thousand, seven hundred forty-one".
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