Base | Representation |
---|---|
bin | 110011010010111001… |
… | …111001100110111111 |
3 | 12021011110222100120012 |
4 | 303102321321212333 |
5 | 1400244432013322 |
6 | 41145200413435 |
7 | 3656612166434 |
oct | 632271714677 |
9 | 167143870505 |
10 | 55078001087 |
11 | 213a410646a |
12 | a81161727b |
13 | 5269b0bbb5 |
14 | 2946cd7b8b |
15 | 16755a7ae2 |
hex | cd2e799bf |
55078001087 has 2 divisors, whose sum is σ = 55078001088. Its totient is φ = 55078001086.
The previous prime is 55078001047. The next prime is 55078001101. The reversal of 55078001087 is 78010087055.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 55078001087 - 26 = 55078001023 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (55078001047) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27539000543 + 27539000544.
It is an arithmetic number, because the mean of its divisors is an integer number (27539000544).
Almost surely, 255078001087 is an apocalyptic number.
55078001087 is a deficient number, since it is larger than the sum of its proper divisors (1).
55078001087 is an equidigital number, since it uses as much as digits as its factorization.
55078001087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 78400, while the sum is 41.
The spelling of 55078001087 in words is "fifty-five billion, seventy-eight million, one thousand, eighty-seven".
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