Base | Representation |
---|---|
bin | 1100011110110001110… |
… | …0100011000101010001 |
3 | 202111110022122001001111 |
4 | 3013230130203011101 |
5 | 12003113044213314 |
6 | 242300415133321 |
7 | 21330351341146 |
oct | 3075434430521 |
9 | 674408561044 |
10 | 214420304209 |
11 | 82a31743191 |
12 | 35680b14241 |
13 | 172b1a2b367 |
14 | a5413263cd |
15 | 589e42bec4 |
hex | 31ec723151 |
214420304209 has 8 divisors (see below), whose sum is σ = 222395802408. Its totient is φ = 206559561600.
The previous prime is 214420304159. The next prime is 214420304243. The reversal of 214420304209 is 902403024412.
It can be written as a sum of positive squares in 4 ways, for example, as 94908357184 + 119511947025 = 308072^2 + 345705^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 214420304209 - 237 = 76981350737 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (214420304809) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28685092 + ... + 28692565.
It is an arithmetic number, because the mean of its divisors is an integer number (27799475301).
Almost surely, 2214420304209 is an apocalyptic number.
It is an amenable number.
214420304209 is a deficient number, since it is larger than the sum of its proper divisors (7975498199).
214420304209 is a wasteful number, since it uses less digits than its factorization.
214420304209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57377795.
The product of its (nonzero) digits is 13824, while the sum is 31.
The spelling of 214420304209 in words is "two hundred fourteen billion, four hundred twenty million, three hundred four thousand, two hundred nine".
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