Base | Representation |
---|---|
bin | 100000000111111101… |
… | …1000110111001110000 |
3 | 20121001210111220012220 |
4 | 1000033323012321300 |
5 | 2112241034122434 |
6 | 51405250521040 |
7 | 4661360451264 |
oct | 1001773067160 |
9 | 217053456186 |
10 | 68986629744 |
11 | 27291176a9a |
12 | 11453596180 |
13 | 6675508896 |
14 | 34a61c80a4 |
15 | 1bdb68cd49 |
hex | 100fec6e70 |
68986629744 has 20 divisors (see below), whose sum is σ = 178215460296. Its totient is φ = 22995543232.
The previous prime is 68986629739. The next prime is 68986629773. The reversal of 68986629744 is 44792668986.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718610679 + ... + 718610774.
Almost surely, 268986629744 is an apocalyptic number.
It is an amenable number.
68986629744 is an abundant number, since it is smaller than the sum of its proper divisors (109228830552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68986629744 is a wasteful number, since it uses less digits than its factorization.
68986629744 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1437221464 (or 1437221458 counting only the distinct ones).
The product of its digits is 250822656, while the sum is 69.
The spelling of 68986629744 in words is "sixty-eight billion, nine hundred eighty-six million, six hundred twenty-nine thousand, seven hundred forty-four".
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