Base | Representation |
---|---|
bin | 11100110000010101… |
… | …010111011100101111 |
3 | 2221200210000222110120 |
4 | 130300111113130233 |
5 | 1001213133203021 |
6 | 22103432540023 |
7 | 2142061636266 |
oct | 346025273457 |
9 | 87623028416 |
10 | 30875678511 |
11 | 12104574287 |
12 | 5b98251613 |
13 | 2bb0924372 |
14 | 16cc8735dd |
15 | c0a94e2c6 |
hex | 73055772f |
30875678511 has 8 divisors (see below), whose sum is σ = 43589193264. Its totient is φ = 19372974720.
The previous prime is 30875678459. The next prime is 30875678521. The reversal of 30875678511 is 11587657803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30875678511 - 26 = 30875678447 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 605405461 = 30875678511 / (3 + 0 + 8 + 7 + 5 + 6 + 7 + 8 + 5 + 1 + 1).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30875678521) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302702680 + ... + 302702781.
It is an arithmetic number, because the mean of its divisors is an integer number (5448649158).
Almost surely, 230875678511 is an apocalyptic number.
30875678511 is a deficient number, since it is larger than the sum of its proper divisors (12713514753).
30875678511 is a wasteful number, since it uses less digits than its factorization.
30875678511 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 605405481.
The product of its (nonzero) digits is 1411200, while the sum is 51.
The spelling of 30875678511 in words is "thirty billion, eight hundred seventy-five million, six hundred seventy-eight thousand, five hundred eleven".
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