Base | Representation |
---|---|
bin | 10011110010110010101… |
… | …11001011010001110011 |
3 | 2102000110121210222002111 |
4 | 21321121113023101303 |
5 | 42120323121033444 |
6 | 1240234022430151 |
7 | 100064420205214 |
oct | 11713127132163 |
9 | 2360417728074 |
10 | 680104080499 |
11 | 242481028918 |
12 | ab985592357 |
13 | 4c1975041cc |
14 | 24cbab9340b |
15 | 12a5754a234 |
hex | 9e595cb473 |
680104080499 has 4 divisors (see below), whose sum is σ = 680119655680. Its totient is φ = 680088505320.
The previous prime is 680104080473. The next prime is 680104080503. The reversal of 680104080499 is 994080401086.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994080401086 = 2 ⋅497040200543.
It is a cyclic number.
It is not a de Polignac number, because 680104080499 - 231 = 677956596851 is a prime.
It is a super-2 number, since 2×6801040804992 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (680104080899) 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, 7721907 + ... + 7809484.
It is an arithmetic number, because the mean of its divisors is an integer number (170029913920).
Almost surely, 2680104080499 is an apocalyptic number.
680104080499 is a deficient number, since it is larger than the sum of its proper divisors (15575181).
680104080499 is a wasteful number, since it uses less digits than its factorization.
680104080499 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15575180.
The product of its (nonzero) digits is 497664, while the sum is 49.
The spelling of 680104080499 in words is "six hundred eighty billion, one hundred four million, eighty thousand, four hundred ninety-nine".
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