Base | Representation |
---|---|
bin | 111111111100001101… |
… | …011010101101011100 |
3 | 20120012202011022221001 |
4 | 333330031122231130 |
5 | 2111101401311043 |
6 | 51312353520044 |
7 | 4650233252314 |
oct | 777415325534 |
9 | 216182138831 |
10 | 68655885148 |
11 | 27131503754 |
12 | 11380873024 |
13 | 6621b34c16 |
14 | 34742d0444 |
15 | 1bbc60974d |
hex | ffc35ab5c |
68655885148 has 12 divisors (see below), whose sum is σ = 120171499672. Its totient is φ = 34321170960.
The previous prime is 68655885059. The next prime is 68655885157. The reversal of 68655885148 is 84158855686.
It is a self number, because there is not a number n which added to its sum of digits gives 68655885148.
It is a congruent number.
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 3 ways as a sum of consecutive naturals, for example, 1670058 + ... + 1710673.
Almost surely, 268655885148 is an apocalyptic number.
It is an amenable number.
68655885148 is a deficient number, since it is larger than the sum of its proper divisors (51515614524).
68655885148 is a wasteful number, since it uses less digits than its factorization.
68655885148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3385812 (or 3385810 counting only the distinct ones).
The product of its digits is 73728000, while the sum is 64.
The spelling of 68655885148 in words is "sixty-eight billion, six hundred fifty-five million, eight hundred eighty-five thousand, one hundred forty-eight".
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