Base | Representation |
---|---|
bin | 100000000111110101… |
… | …0101001101101101110 |
3 | 20121001111101201201101 |
4 | 1000033222221231232 |
5 | 2112233433102021 |
6 | 51405014233314 |
7 | 4661306003401 |
oct | 1001752515556 |
9 | 217044351641 |
10 | 68982315886 |
11 | 2728979aa20 |
12 | 1145205583a |
13 | 66746581c3 |
14 | 34a57c3d38 |
15 | 1bdb0d9a91 |
hex | 100faa9b6e |
68982315886 has 16 divisors (see below), whose sum is σ = 113106384000. Its totient is φ = 31292756280.
The previous prime is 68982315881. The next prime is 68982315901. The reversal of 68982315886 is 68851328986.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68982315881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3130866 + ... + 3152821.
It is an arithmetic number, because the mean of its divisors is an integer number (7069149000).
Almost surely, 268982315886 is an apocalyptic number.
68982315886 is a deficient number, since it is larger than the sum of its proper divisors (44124068114).
68982315886 is a wasteful number, since it uses less digits than its factorization.
68982315886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6284199.
The product of its digits is 39813120, while the sum is 64.
The spelling of 68982315886 in words is "sixty-eight billion, nine hundred eighty-two million, three hundred fifteen thousand, eight hundred eighty-six".
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