Base | Representation |
---|---|
bin | 10001101011111110001… |
… | …011101000100011000111 |
3 | 11022012021110122121010122 |
4 | 101223332023220203013 |
5 | 124403212440140012 |
6 | 2330211241412155 |
7 | 153545603035205 |
oct | 21537613504307 |
9 | 4265243577118 |
10 | 1215445240007 |
11 | 429516173559 |
12 | 17768a19a05b |
13 | 8a801454c8b |
14 | 42b8392c075 |
15 | 2193ab4ce72 |
hex | 11afe2e88c7 |
1215445240007 has 2 divisors, whose sum is σ = 1215445240008. Its totient is φ = 1215445240006.
The previous prime is 1215445239979. The next prime is 1215445240013. The reversal of 1215445240007 is 7000425445121.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1215445240007 - 214 = 1215445223623 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1215445440007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607722620003 + 607722620004.
It is an arithmetic number, because the mean of its divisors is an integer number (607722620004).
Almost surely, 21215445240007 is an apocalyptic number.
1215445240007 is a deficient number, since it is larger than the sum of its proper divisors (1).
1215445240007 is an equidigital number, since it uses as much as digits as its factorization.
1215445240007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 44800, while the sum is 35.
The spelling of 1215445240007 in words is "one trillion, two hundred fifteen billion, four hundred forty-five million, two hundred forty thousand, seven".
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