Base | Representation |
---|---|
bin | 11100001000110000… |
… | …001011000100101001 |
3 | 2212222111111011102012 |
4 | 130020300023010221 |
5 | 443333133221230 |
6 | 21513511445305 |
7 | 2116446336140 |
oct | 341060130451 |
9 | 85874434365 |
10 | 30211617065 |
11 | 118a3741073 |
12 | 5a31986835 |
13 | 2b06188cb6 |
14 | 16685b2757 |
15 | bbc4ca395 |
hex | 708c0b129 |
30211617065 has 32 divisors (see below), whose sum is σ = 43889485824. Its totient is φ = 19489397760.
The previous prime is 30211616999. The next prime is 30211617077. The reversal of 30211617065 is 56071611203.
It is not a de Polignac number, because 30211617065 - 224 = 30194839849 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1531847 + ... + 1551443.
It is an arithmetic number, because the mean of its divisors is an integer number (1371546432).
Almost surely, 230211617065 is an apocalyptic number.
30211617065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30211617065 is a deficient number, since it is larger than the sum of its proper divisors (13677868759).
30211617065 is a wasteful number, since it uses less digits than its factorization.
30211617065 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22217.
The product of its (nonzero) digits is 7560, while the sum is 32.
The spelling of 30211617065 in words is "thirty billion, two hundred eleven million, six hundred seventeen thousand, sixty-five".
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