Base | Representation |
---|---|
bin | 11000100101110001… |
… | …10100000110001011 |
3 | 1021002001111011202102 |
4 | 30102320310012023 |
5 | 204014124111402 |
6 | 10022000024015 |
7 | 645103215521 |
oct | 142270640613 |
9 | 37061434672 |
10 | 13201785227 |
11 | 5665077704 |
12 | 268530200b |
13 | 1325132747 |
14 | 8d3494311 |
15 | 524010102 |
hex | 312e3418b |
13201785227 has 4 divisors (see below), whose sum is σ = 13387725936. Its totient is φ = 13015844520.
The previous prime is 13201785167. The next prime is 13201785241. The reversal of 13201785227 is 72258710231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72258710231 = 10273 ⋅7033847.
It is a cyclic number.
It is not a de Polignac number, because 13201785227 - 214 = 13201768843 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13201785287) 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, 92970248 + ... + 92970389.
It is an arithmetic number, because the mean of its divisors is an integer number (3346931484).
Almost surely, 213201785227 is an apocalyptic number.
13201785227 is a deficient number, since it is larger than the sum of its proper divisors (185940709).
13201785227 is an equidigital number, since it uses as much as digits as its factorization.
13201785227 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 185940708.
The product of its (nonzero) digits is 47040, while the sum is 38.
The spelling of 13201785227 in words is "thirteen billion, two hundred one million, seven hundred eighty-five thousand, two hundred twenty-seven".
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