Base | Representation |
---|---|
bin | 111111011010011000… |
… | …110111111110101000 |
3 | 20111202012110022110000 |
4 | 333122120313332220 |
5 | 2103421121311042 |
6 | 51140204023000 |
7 | 4630203250164 |
oct | 773230677650 |
9 | 214665408400 |
10 | 68088463272 |
11 | 26970187255 |
12 | 11242831a60 |
13 | 656140492b |
14 | 341cbc7ca4 |
15 | 1b878c474c |
hex | fda637fa8 |
68088463272 has 40 divisors (see below), whose sum is σ = 190710743850. Its totient is φ = 22696154208.
The previous prime is 68088463253. The next prime is 68088463279. The reversal of 68088463272 is 27236488086.
68088463272 is a `hidden beast` number, since 6 + 80 + 88 + 463 + 27 + 2 = 666.
It can be written as a sum of positive squares in only one way, i.e., 57200375556 + 10888087716 = 239166^2 + 104346^2 .
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (68088463279) 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 in 9 ways as a sum of consecutive naturals, for example, 52536747 + ... + 52538042.
Almost surely, 268088463272 is an apocalyptic number.
It is an amenable number.
68088463272 is an abundant number, since it is smaller than the sum of its proper divisors (122622280578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68088463272 is a wasteful number, since it uses less digits than its factorization.
68088463272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 105074807 (or 105074794 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 54.
The spelling of 68088463272 in words is "sixty-eight billion, eighty-eight million, four hundred sixty-three thousand, two hundred seventy-two".
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