Base | Representation |
---|---|
bin | 100000001000000010… |
… | …0000000011000000011 |
3 | 20121001221220101220010 |
4 | 1000100010000120003 |
5 | 2112242133243212 |
6 | 51405412520003 |
7 | 4661416334616 |
oct | 1002004003003 |
9 | 217057811803 |
10 | 68988962307 |
11 | 2729251a531 |
12 | 11454320003 |
13 | 6675b444b5 |
14 | 34a663417d |
15 | 1bdb99e03c |
hex | 1010100603 |
68988962307 has 16 divisors (see below), whose sum is σ = 94968919040. Its totient is φ = 44501335200.
The previous prime is 68988962293. The next prime is 68988962347. The reversal of 68988962307 is 70326988986.
It is not a de Polignac number, because 68988962307 - 24 = 68988962291 is a prime.
It is the 262658-th Hogben number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68988962347) by changing a digit.
It is a nontrivial repunit in base 262657.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505569 + ... + 627357.
It is an arithmetic number, because the mean of its divisors is an integer number (5935557440).
Almost surely, 268988962307 is an apocalyptic number.
68988962307 is a deficient number, since it is larger than the sum of its proper divisors (25979956733).
68988962307 is a wasteful number, since it uses less digits than its factorization.
68988962307 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 127914.
The product of its (nonzero) digits is 62705664, while the sum is 66.
The spelling of 68988962307 in words is "sixty-eight billion, nine hundred eighty-eight million, nine hundred sixty-two thousand, three hundred seven".
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