Base | Representation |
---|---|
bin | 100000000010011111… |
… | …1110010001011110111 |
3 | 20120121000120002122011 |
4 | 1000010333302023313 |
5 | 2111402121244411 |
6 | 51335141345051 |
7 | 4654003311352 |
oct | 1000477621367 |
9 | 216530502564 |
10 | 68803306231 |
11 | 271a7744360 |
12 | 11402108187 |
13 | 664654002a |
14 | 3489b07299 |
15 | 1bca529c21 |
hex | 1004ff22f7 |
68803306231 has 8 divisors (see below), whose sum is σ = 78321550464. Its totient is φ = 59828961720.
The previous prime is 68803306213. The next prime is 68803306241. The reversal of 68803306231 is 13260330886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-68803306231 is a prime.
It is a super-2 number, since 2×688033062312 (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 (68803306241) 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 7 ways as a sum of consecutive naturals, for example, 135974661 + ... + 135975166.
It is an arithmetic number, because the mean of its divisors is an integer number (9790193808).
Almost surely, 268803306231 is an apocalyptic number.
68803306231 is a deficient number, since it is larger than the sum of its proper divisors (9518244233).
68803306231 is a wasteful number, since it uses less digits than its factorization.
68803306231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 271949861.
The product of its (nonzero) digits is 124416, while the sum is 40.
The spelling of 68803306231 in words is "sixty-eight billion, eight hundred three million, three hundred six thousand, two hundred thirty-one".
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