Base | Representation |
---|---|
bin | 111111100011000111… |
… | …100010100011011101 |
3 | 20112010102000210002112 |
4 | 333203013202203131 |
5 | 2104221114222023 |
6 | 51202515003405 |
7 | 4633632125240 |
oct | 774307424335 |
9 | 215112023075 |
10 | 68234914013 |
11 | 26a35914922 |
12 | 11283899565 |
13 | 6585860186 |
14 | 343442b257 |
15 | 1b956a2478 |
hex | fe31e28dd |
68234914013 has 4 divisors (see below), whose sum is σ = 77982758880. Its totient is φ = 58487069148.
The previous prime is 68234914009. The next prime is 68234914019. The reversal of 68234914013 is 31041943286.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 68234914013 - 22 = 68234914009 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68234914019) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4873922423 + ... + 4873922436.
It is an arithmetic number, because the mean of its divisors is an integer number (19495689720).
Almost surely, 268234914013 is an apocalyptic number.
It is an amenable number.
68234914013 is a deficient number, since it is larger than the sum of its proper divisors (9747844867).
68234914013 is an equidigital number, since it uses as much as digits as its factorization.
68234914013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9747844866.
The product of its (nonzero) digits is 124416, while the sum is 41.
The spelling of 68234914013 in words is "sixty-eight billion, two hundred thirty-four million, nine hundred fourteen thousand, thirteen".
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