Base | Representation |
---|---|
bin | 10010000111111010010… |
… | …100011111011001011111 |
3 | 11102001201012220200121001 |
4 | 102013322110133121133 |
5 | 130401132434132111 |
6 | 2352052153251131 |
7 | 155660202506401 |
oct | 22077224373137 |
9 | 4361635820531 |
10 | 1245445224031 |
11 | 4402103a6588 |
12 | 181461103aa7 |
13 | 905a2812a08 |
14 | 443cbd70b71 |
15 | 225e47721c1 |
hex | 121fa51f65f |
1245445224031 has 2 divisors, whose sum is σ = 1245445224032. Its totient is φ = 1245445224030.
The previous prime is 1245445223947. The next prime is 1245445224091. The reversal of 1245445224031 is 1304225445421.
It is a strong prime.
It is an emirp because it is prime and its reverse (1304225445421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1245445224031 - 217 = 1245445092959 is a prime.
It is a super-2 number, since 2×12454452240312 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1245445224091) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622722612015 + 622722612016.
It is an arithmetic number, because the mean of its divisors is an integer number (622722612016).
Almost surely, 21245445224031 is an apocalyptic number.
1245445224031 is a deficient number, since it is larger than the sum of its proper divisors (1).
1245445224031 is an equidigital number, since it uses as much as digits as its factorization.
1245445224031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 153600, while the sum is 37.
The spelling of 1245445224031 in words is "one trillion, two hundred forty-five billion, four hundred forty-five million, two hundred twenty-four thousand, thirty-one".
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