Base | Representation |
---|---|
bin | 101001000000100… |
… | …000110101101001 |
3 | 1202221121001001212 |
4 | 221000200311221 |
5 | 2402112002421 |
6 | 152134122505 |
7 | 23022622646 |
oct | 5100406551 |
9 | 1687531055 |
10 | 688000361 |
11 | 3233a3944 |
12 | 1724b0435 |
13 | ac6ca609 |
14 | 67532dcd |
15 | 40601e5b |
hex | 29020d69 |
688000361 has 8 divisors (see below), whose sum is σ = 690740160. Its totient is φ = 685266768.
The previous prime is 688000337. The next prime is 688000427. The reversal of 688000361 is 163000886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 688000361 - 226 = 620891497 is a prime.
It is a super-2 number, since 2×6880003612 = 946688993472260642, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (688000331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384110 + ... + 385896.
It is an arithmetic number, because the mean of its divisors is an integer number (86342520).
Almost surely, 2688000361 is an apocalyptic number.
It is an amenable number.
688000361 is a deficient number, since it is larger than the sum of its proper divisors (2739799).
688000361 is a wasteful number, since it uses less digits than its factorization.
688000361 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3103.
The product of its (nonzero) digits is 6912, while the sum is 32.
The square root of 688000361 is about 26229.7609787051. The cubic root of 688000361 is about 882.8011468930.
The spelling of 688000361 in words is "six hundred eighty-eight million, three hundred sixty-one", and thus it is an aban number.
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