Base | Representation |
---|---|
bin | 100000000010110000… |
… | …0111111011100110011 |
3 | 20120121121221100202200 |
4 | 1000011200333130303 |
5 | 2111411333330230 |
6 | 51340052114243 |
7 | 4654140305535 |
oct | 1000540773463 |
9 | 216547840680 |
10 | 68812011315 |
11 | 2720164a643 |
12 | 11405005983 |
13 | 664829a378 |
14 | 348ad31855 |
15 | 1bcb199160 |
hex | 100583f733 |
68812011315 has 24 divisors (see below), whose sum is σ = 121054369488. Its totient is φ = 36151980480.
The previous prime is 68812011283. The next prime is 68812011383. The reversal of 68812011315 is 51311021886.
68812011315 is a `hidden beast` number, since 68 + 81 + 201 + 1 + 315 = 666.
It is not a de Polignac number, because 68812011315 - 25 = 68812011283 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68812011315.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11408596 + ... + 11414625.
It is an arithmetic number, because the mean of its divisors is an integer number (5043932062).
Almost surely, 268812011315 is an apocalyptic number.
68812011315 is a deficient number, since it is larger than the sum of its proper divisors (52242358173).
68812011315 is a wasteful number, since it uses less digits than its factorization.
68812011315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22823299 (or 22823296 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 36.
The spelling of 68812011315 in words is "sixty-eight billion, eight hundred twelve million, eleven thousand, three hundred fifteen".
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