Base | Representation |
---|---|
bin | 111111010101011001… |
… | …010011001110000010 |
3 | 20111112100211010102200 |
4 | 333111121103032002 |
5 | 2103233200020040 |
6 | 51124012254030 |
7 | 4625135213514 |
oct | 772531231602 |
9 | 214470733380 |
10 | 68004688770 |
11 | 26927968227 |
12 | 1121a771316 |
13 | 6549c52515 |
14 | 3411a1bbb4 |
15 | 1b80377630 |
hex | fd5653382 |
68004688770 has 96 divisors (see below), whose sum is σ = 191566881792. Its totient is φ = 16670900736.
The previous prime is 68004688729. The next prime is 68004688771. The reversal of 68004688770 is 7788640086.
It is a super-2 number, since 2×680046887702 (a number of 22 digits) contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (68004688771) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 451042 + ... + 582621.
It is an arithmetic number, because the mean of its divisors is an integer number (1995488352).
Almost surely, 268004688770 is an apocalyptic number.
68004688770 is an abundant number, since it is smaller than the sum of its proper divisors (123562193022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68004688770 is a wasteful number, since it uses less digits than its factorization.
68004688770 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1033736 (or 1033733 counting only the distinct ones).
The product of its (nonzero) digits is 3612672, while the sum is 54.
The spelling of 68004688770 in words is "sixty-eight billion, four million, six hundred eighty-eight thousand, seven hundred seventy".
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