Base | Representation |
---|---|
bin | 11111000110000101001110… |
… | …10000010011000010100010 |
3 | 22222002221100011012102101200 |
4 | 33203002213100103002202 |
5 | 32430304021431412212 |
6 | 401232422345142030 |
7 | 20255124366054261 |
oct | 1743024720230242 |
9 | 288087304172350 |
10 | 68378685419682 |
11 | 1a873268322000 |
12 | 78042b748a916 |
13 | 2c2010bc64781 |
14 | 12c57904585d8 |
15 | 7d8a470756dc |
hex | 3e30a74130a2 |
68378685419682 has 48 divisors (see below), whose sum is σ = 162958069291680. Its totient is φ = 20720813756280.
The previous prime is 68378685419651. The next prime is 68378685419719. The reversal of 68378685419682 is 28691458687386.
68378685419682 is a `hidden beast` number, since 6 + 8 + 3 + 7 + 8 + 6 + 8 + 541 + 9 + 68 + 2 = 666.
It is a super-2 number, since 2×683786854196822 (a number of 28 digits) contains 22 as substring.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 1427029332 + ... + 1427077247.
It is an arithmetic number, because the mean of its divisors is an integer number (3394959776910).
Almost surely, 268378685419682 is an apocalyptic number.
68378685419682 is an abundant number, since it is smaller than the sum of its proper divisors (94579383871998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68378685419682 is a wasteful number, since it uses less digits than its factorization.
68378685419682 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2854106620 (or 2854106595 counting only the distinct ones).
The product of its digits is 6688604160, while the sum is 81.
The spelling of 68378685419682 in words is "sixty-eight trillion, three hundred seventy-eight billion, six hundred eighty-five million, four hundred nineteen thousand, six hundred eighty-two".
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