Base | Representation |
---|---|
bin | 111111010111100111… |
… | …101001010100101101 |
3 | 20111121222000220222020 |
4 | 333113213221110231 |
5 | 2103322223110012 |
6 | 51131424140353 |
7 | 4626100326540 |
oct | 772747512455 |
9 | 214558026866 |
10 | 68042003757 |
11 | 26946a34562 |
12 | 1122b1676b9 |
13 | 65548b8bb0 |
14 | 3416972857 |
15 | 1b83798a8c |
hex | fd79e952d |
68042003757 has 32 divisors (see below), whose sum is σ = 115260579840. Its totient is φ = 34732532160.
The previous prime is 68042003737. The next prime is 68042003761. The reversal of 68042003757 is 75730024086.
It is not a de Polignac number, because 68042003757 - 216 = 68041938221 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68042003737) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4011507 + ... + 4028432.
It is an arithmetic number, because the mean of its divisors is an integer number (3601893120).
Almost surely, 268042003757 is an apocalyptic number.
It is an amenable number.
68042003757 is a deficient number, since it is larger than the sum of its proper divisors (47218576083).
68042003757 is a wasteful number, since it uses less digits than its factorization.
68042003757 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8039993.
The product of its (nonzero) digits is 282240, while the sum is 42.
The spelling of 68042003757 in words is "sixty-eight billion, forty-two million, three thousand, seven hundred fifty-seven".
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