Base | Representation |
---|---|
bin | 10001110100001000000… |
… | …111010010011000101001 |
3 | 11100000212201200022101112 |
4 | 101310020013102120221 |
5 | 130024131130314101 |
6 | 2334220205200105 |
7 | 154305601446206 |
oct | 21641007223051 |
9 | 4300781608345 |
10 | 1224201807401 |
11 | 4321aa007211 |
12 | 179312860035 |
13 | 8b598651bc1 |
14 | 43374896cad |
15 | 21c9e7916bb |
hex | 11d081d2629 |
1224201807401 has 2 divisors, whose sum is σ = 1224201807402. Its totient is φ = 1224201807400.
The previous prime is 1224201807331. The next prime is 1224201807419. The reversal of 1224201807401 is 1047081024221.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1169910477376 + 54291330025 = 1081624^2 + 233005^2 .
It is a cyclic number.
It is not a de Polignac number, because 1224201807401 - 214 = 1224201791017 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (1224201807431) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612100903700 + 612100903701.
It is an arithmetic number, because the mean of its divisors is an integer number (612100903701).
Almost surely, 21224201807401 is an apocalyptic number.
It is an amenable number.
1224201807401 is a deficient number, since it is larger than the sum of its proper divisors (1).
1224201807401 is an equidigital number, since it uses as much as digits as its factorization.
1224201807401 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 7168, while the sum is 32.
The spelling of 1224201807401 in words is "one trillion, two hundred twenty-four billion, two hundred one million, eight hundred seven thousand, four hundred one".
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