Base | Representation |
---|---|
bin | 100000000110010000… |
… | …1001101100101110000 |
3 | 20120220211000220022100 |
4 | 1000030201031211300 |
5 | 2112131423302434 |
6 | 51355450340400 |
7 | 4660065110544 |
oct | 1001441154560 |
9 | 216824026270 |
10 | 68929509744 |
11 | 27261a02987 |
12 | 1143842a700 |
13 | 6666729774 |
14 | 349c799a24 |
15 | 1bd6658699 |
hex | 100c84d970 |
68929509744 has 60 divisors (see below), whose sum is σ = 192937568616. Its totient is φ = 22972849536.
The previous prime is 68929509721. The next prime is 68929509793. The reversal of 68929509744 is 44790592986.
68929509744 is a `hidden beast` number, since 6 + 89 + 2 + 9 + 509 + 7 + 44 = 666.
It is a super-4 number, since 4×689295097444 (a number of 44 digits) contains 4444 as substring.
It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 961447 + ... + 1030649.
Almost surely, 268929509744 is an apocalyptic number.
It is an amenable number.
68929509744 is an abundant number, since it is smaller than the sum of its proper divisors (124008058872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68929509744 is a wasteful number, since it uses less digits than its factorization.
68929509744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76134 (or 76125 counting only the distinct ones).
The product of its (nonzero) digits is 39191040, while the sum is 63.
The spelling of 68929509744 in words is "sixty-eight billion, nine hundred twenty-nine million, five hundred nine thousand, seven hundred forty-four".
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