Base | Representation |
---|---|
bin | 1000001001101… |
… | …00000011110110 |
3 | 11202122120221100 |
4 | 10010310003312 |
5 | 120000330203 |
6 | 10441230530 |
7 | 1460066265 |
oct | 404640366 |
9 | 152576840 |
10 | 68370678 |
11 | 356589a2 |
12 | 1aa92446 |
13 | 1121b02c |
14 | 911a5dc |
15 | 6007ea3 |
hex | 41340f6 |
68370678 has 12 divisors (see below), whose sum is σ = 148136508. Its totient is φ = 22790220.
The previous prime is 68370677. The next prime is 68370707. The reversal of 68370678 is 87607386.
It is a super-2 number, since 2×683706782 = 9349099220359368, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68370677) by changing a digit.
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 5 ways as a sum of consecutive naturals, for example, 1899168 + ... + 1899203.
It is an arithmetic number, because the mean of its divisors is an integer number (12344709).
Almost surely, 268370678 is an apocalyptic number.
68370678 is an abundant number, since it is smaller than the sum of its proper divisors (79765830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68370678 is a wasteful number, since it uses less digits than its factorization.
68370678 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3798379 (or 3798376 counting only the distinct ones).
The product of its (nonzero) digits is 338688, while the sum is 45.
The square root of 68370678 is about 8268.6563600140. The cubic root of 68370678 is about 408.9058233716.
The spelling of 68370678 in words is "sixty-eight million, three hundred seventy thousand, six hundred seventy-eight".
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