Base | Representation |
---|---|
bin | 11100100100101101… |
… | …110010110101100011 |
3 | 2221012012020212102211 |
4 | 130210231302311203 |
5 | 1000313233134210 |
6 | 22032231022551 |
7 | 2134204055632 |
oct | 344455626543 |
9 | 87165225384 |
10 | 30680755555 |
11 | 1201453982a |
12 | 5b42b0aa57 |
13 | 2b7c426c38 |
14 | 16b0a13519 |
15 | be879938a |
hex | 724b72d63 |
30680755555 has 8 divisors (see below), whose sum is σ = 36826300800. Its totient is φ = 24538341696.
The previous prime is 30680755541. The next prime is 30680755601. The reversal of 30680755555 is 55555708603.
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 30680755555 - 229 = 30143884643 is a prime.
It is a super-2 number, since 2×306807555552 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30680755499 and 30680755508.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761235 + ... + 800524.
It is an arithmetic number, because the mean of its divisors is an integer number (4603287600).
Almost surely, 230680755555 is an apocalyptic number.
30680755555 is a deficient number, since it is larger than the sum of its proper divisors (6145545245).
30680755555 is a wasteful number, since it uses less digits than its factorization.
30680755555 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1565693.
The product of its (nonzero) digits is 3150000, while the sum is 49.
The spelling of 30680755555 in words is "thirty billion, six hundred eighty million, seven hundred fifty-five thousand, five hundred fifty-five".
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