Base | Representation |
---|---|
bin | 100000000100001011… |
… | …1100011001100000000 |
3 | 20120201221222201122221 |
4 | 1000020113203030000 |
5 | 2112011111233104 |
6 | 51344521540424 |
7 | 4655261135242 |
oct | 1001027431400 |
9 | 216657881587 |
10 | 68859867904 |
11 | 27226666a43 |
12 | 11419044714 |
13 | 6655184c89 |
14 | 349342c092 |
15 | 1bd049dc54 |
hex | 10085e3300 |
68859867904 has 36 divisors (see below), whose sum is σ = 137936588776. Its totient is φ = 34308237312.
The previous prime is 68859867899. The next prime is 68859867919. The reversal of 68859867904 is 40976895886.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402789 + ... + 547684.
Almost surely, 268859867904 is an apocalyptic number.
68859867904 is a gapful number since it is divisible by the number (64) formed by its first and last digit.
It is an amenable number.
68859867904 is an abundant number, since it is smaller than the sum of its proper divisors (69076720872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68859867904 is an equidigital number, since it uses as much as digits as its factorization.
68859867904 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 950772 (or 950758 counting only the distinct ones).
The product of its (nonzero) digits is 209018880, while the sum is 70.
It can be divided in two parts, 6885 and 9867904, that added together give a palindrome (9874789).
The spelling of 68859867904 in words is "sixty-eight billion, eight hundred fifty-nine million, eight hundred sixty-seven thousand, nine hundred four".
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