Base | Representation |
---|---|
bin | 1011111100110001111… |
… | …1110111011111001001 |
3 | 201121220022120111000112 |
4 | 2333030133313133021 |
5 | 11330420324244323 |
6 | 234151054444105 |
7 | 20555246225210 |
oct | 2771437673711 |
9 | 647808514015 |
10 | 205294368713 |
11 | 7a079356835 |
12 | 33954803635 |
13 | 16489156625 |
14 | 9d172cc077 |
15 | 5518176178 |
hex | 2fcc7f77c9 |
205294368713 has 4 divisors (see below), whose sum is σ = 234622135680. Its totient is φ = 175966601748.
The previous prime is 205294368701. The next prime is 205294368739. The reversal of 205294368713 is 317863492502.
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 not a de Polignac number, because 205294368713 - 230 = 204220626889 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (205294368743) 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, 14663883473 + ... + 14663883486.
It is an arithmetic number, because the mean of its divisors is an integer number (58655533920).
It is a 1-persistent number, because it is pandigital, but 2⋅205294368713 = 410588737426 is not.
Almost surely, 2205294368713 is an apocalyptic number.
It is an amenable number.
205294368713 is a deficient number, since it is larger than the sum of its proper divisors (29327766967).
205294368713 is an equidigital number, since it uses as much as digits as its factorization.
205294368713 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29327766966.
The product of its (nonzero) digits is 2177280, while the sum is 50.
The spelling of 205294368713 in words is "two hundred five billion, two hundred ninety-four million, three hundred sixty-eight thousand, seven hundred thirteen".
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