Base | Representation |
---|---|
bin | 101110101100… |
… | …101111111001 |
3 | 212000221202012 |
4 | 232230233321 |
5 | 11113220123 |
6 | 1114215305 |
7 | 206024465 |
oct | 56545771 |
9 | 25027665 |
10 | 12241913 |
11 | 6a01592 |
12 | 4124535 |
13 | 26c8148 |
14 | 18a94a5 |
15 | 111c378 |
hex | bacbf9 |
12241913 has 2 divisors, whose sum is σ = 12241914. Its totient is φ = 12241912.
The previous prime is 12241877. The next prime is 12241927. The reversal of 12241913 is 31914221.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 11235904 + 1006009 = 3352^2 + 1003^2 .
It is a cyclic number.
It is not a de Polignac number, because 12241913 - 210 = 12240889 is a prime.
It is not a weakly prime, because it can be changed into another prime (12241013) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120956 + 6120957.
It is an arithmetic number, because the mean of its divisors is an integer number (6120957).
Almost surely, 212241913 is an apocalyptic number.
It is an amenable number.
12241913 is a deficient number, since it is larger than the sum of its proper divisors (1).
12241913 is an equidigital number, since it uses as much as digits as its factorization.
12241913 is an evil number, because the sum of its binary digits is even.
The product of its digits is 432, while the sum is 23.
The square root of 12241913 is about 3498.8445235535. The cubic root of 12241913 is about 230.4710760914.
The spelling of 12241913 in words is "twelve million, two hundred forty-one thousand, nine hundred thirteen".
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