Base | Representation |
---|---|
bin | 11111001111001101110011… |
… | …10101101010111001110010 |
3 | 100000012221102111210211001100 |
4 | 33213212321311222321302 |
5 | 33000424300113204000 |
6 | 402032525035545230 |
7 | 20316604632331611 |
oct | 1747467165527162 |
9 | 300187374724040 |
10 | 68692529819250 |
11 | 1a98437a2aa637 |
12 | 78550a52bb216 |
13 | 2c438a709218c |
14 | 12d6a4412b878 |
15 | 7e1cb4d7da00 |
hex | 3e79b9d6ae72 |
68692529819250 has 48 divisors (see below), whose sum is σ = 185744600637336. Its totient is φ = 18318007951200.
The previous prime is 68692529819189. The next prime is 68692529819257. The reversal of 68692529819250 is 5291892529686.
68692529819250 is a `hidden beast` number, since 6 + 8 + 6 + 9 + 2 + 529 + 8 + 1 + 92 + 5 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 5181081887601 + 63511447931649 = 2276199^2 + 7969407^2 .
It is not an unprimeable number, because it can be changed into a prime (68692529819257) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15265004377 + ... + 15265008876.
Almost surely, 268692529819250 is an apocalyptic number.
68692529819250 is an abundant number, since it is smaller than the sum of its proper divisors (117052070818086).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68692529819250 is a wasteful number, since it uses less digits than its factorization.
68692529819250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30530013276 (or 30530013263 counting only the distinct ones).
The product of its (nonzero) digits is 335923200, while the sum is 72.
The spelling of 68692529819250 in words is "sixty-eight trillion, six hundred ninety-two billion, five hundred twenty-nine million, eight hundred nineteen thousand, two hundred fifty".
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