Base | Representation |
---|---|
bin | 111111111100101000… |
… | …100011101111000111 |
3 | 20120020020112210200100 |
4 | 333330220203233013 |
5 | 2111110212000012 |
6 | 51313210215143 |
7 | 4650350604330 |
oct | 777450435707 |
9 | 216206483610 |
10 | 68663000007 |
11 | 271355231a8 |
12 | 113831244b3 |
13 | 66234564b4 |
14 | 3475223287 |
15 | 1bbd0628dc |
hex | ffca23bc7 |
68663000007 has 12 divisors (see below), whose sum is σ = 113348444560. Its totient is φ = 39235999968.
The previous prime is 68662999987. The next prime is 68663000069. The reversal of 68663000007 is 70000036686.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-68663000007 is a prime.
It is a super-2 number, since 2×686630000072 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68663000507) 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 11 ways as a sum of consecutive naturals, for example, 544944382 + ... + 544944507.
Almost surely, 268663000007 is an apocalyptic number.
68663000007 is a deficient number, since it is larger than the sum of its proper divisors (44685444553).
68663000007 is a wasteful number, since it uses less digits than its factorization.
68663000007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1089888902 (or 1089888899 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The spelling of 68663000007 in words is "sixty-eight billion, six hundred sixty-three million, seven", and thus it is an aban number.
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