Base | Representation |
---|---|
bin | 111111111110100101… |
… | …110101010101100010 |
3 | 20120022112100020211000 |
4 | 333332211311111202 |
5 | 2111142113340343 |
6 | 51320342132430 |
7 | 4651230002124 |
oct | 777645652542 |
9 | 216275306730 |
10 | 68695840098 |
11 | 27152013476 |
12 | 11392121116 |
13 | 662a1b40c2 |
14 | 3479731214 |
15 | 1bc0d9ced3 |
hex | ffe975562 |
68695840098 has 16 divisors (see below), whose sum is σ = 152657422560. Its totient is φ = 22898613348.
The previous prime is 68695840067. The next prime is 68695840159. The reversal of 68695840098 is 89004859686.
It is an unprimeable number.
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 in 7 ways as a sum of consecutive naturals, for example, 636072540 + ... + 636072647.
It is an arithmetic number, because the mean of its divisors is an integer number (9541088910).
Almost surely, 268695840098 is an apocalyptic number.
68695840098 is an abundant number, since it is smaller than the sum of its proper divisors (83961582462).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68695840098 is a wasteful number, since it uses less digits than its factorization.
68695840098 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1272145198 (or 1272145192 counting only the distinct ones).
The product of its (nonzero) digits is 29859840, while the sum is 63.
The spelling of 68695840098 in words is "sixty-eight billion, six hundred ninety-five million, eight hundred forty thousand, ninety-eight".
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