Base | Representation |
---|---|
bin | 111111110010001001… |
… | …001100000000010111 |
3 | 20112202222101021210111 |
4 | 333302021030000113 |
5 | 2110230133113213 |
6 | 51243522103451 |
7 | 4643112634063 |
oct | 776211140027 |
9 | 215688337714 |
10 | 68487004183 |
11 | 27055145a04 |
12 | 113341aab87 |
13 | 65c5b55060 |
14 | 3459accaa3 |
15 | 1bac89aa3d |
hex | ff224c017 |
68487004183 has 4 divisors (see below), whose sum is σ = 73755235288. Its totient is φ = 63218773080.
The previous prime is 68487004177. The next prime is 68487004237. The reversal of 68487004183 is 38140078486.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 68487004183 - 29 = 68487003671 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 (68487004783) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2634115533 + ... + 2634115558.
It is an arithmetic number, because the mean of its divisors is an integer number (18438808822).
Almost surely, 268487004183 is an apocalyptic number.
68487004183 is a deficient number, since it is larger than the sum of its proper divisors (5268231105).
68487004183 is a wasteful number, since it uses less digits than its factorization.
68487004183 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5268231104.
The product of its (nonzero) digits is 1032192, while the sum is 49.
The spelling of 68487004183 in words is "sixty-eight billion, four hundred eighty-seven million, four thousand, one hundred eighty-three".
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