Base | Representation |
---|---|
bin | 11100100101001000… |
… | …110100100000011110 |
3 | 2221012200120210212021 |
4 | 130211020310200132 |
5 | 1000322041342121 |
6 | 22033042530354 |
7 | 2134321224055 |
oct | 344510644036 |
9 | 87180523767 |
10 | 30687840286 |
11 | 12018538684 |
12 | 5b453669ba |
13 | 2b80a3789c |
14 | 16b193939c |
15 | be91e8641 |
hex | 72523481e |
30687840286 has 8 divisors (see below), whose sum is σ = 46046114640. Its totient is φ = 15339135408.
The previous prime is 30687840257. The next prime is 30687840301. The reversal of 30687840286 is 68204878603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×306878402863 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384346 + ... + 2397181.
It is an arithmetic number, because the mean of its divisors is an integer number (5755764330).
Almost surely, 230687840286 is an apocalyptic number.
30687840286 is a deficient number, since it is larger than the sum of its proper divisors (15358274354).
30687840286 is a wasteful number, since it uses less digits than its factorization.
30687840286 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4784738.
The product of its (nonzero) digits is 3096576, while the sum is 52.
The spelling of 30687840286 in words is "thirty billion, six hundred eighty-seven million, eight hundred forty thousand, two hundred eighty-six".
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