Base | Representation |
---|---|
bin | 111111100100000100… |
… | …011110000100110111 |
3 | 20112011112002021011110 |
4 | 333210010132010313 |
5 | 2104234211331310 |
6 | 51204245210103 |
7 | 4634214651153 |
oct | 774404360467 |
9 | 215145067143 |
10 | 68250886455 |
11 | 26a43934194 |
12 | 11289100933 |
13 | 6588c6331b |
14 | 34365c8063 |
15 | 1b96ca9d20 |
hex | fe411e137 |
68250886455 has 16 divisors (see below), whose sum is σ = 109210460544. Its totient is φ = 36397458720.
The previous prime is 68250886453. The next prime is 68250886463. The reversal of 68250886455 is 55468805286.
It is not a de Polignac number, because 68250886455 - 21 = 68250886453 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68250886395 and 68250886404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68250886453) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5232 + ... + 369498.
It is an arithmetic number, because the mean of its divisors is an integer number (6825653784).
Almost surely, 268250886455 is an apocalyptic number.
68250886455 is a deficient number, since it is larger than the sum of its proper divisors (40959574089).
68250886455 is a wasteful number, since it uses less digits than its factorization.
68250886455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 376766.
The product of its (nonzero) digits is 18432000, while the sum is 57.
The spelling of 68250886455 in words is "sixty-eight billion, two hundred fifty million, eight hundred eighty-six thousand, four hundred fifty-five".
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