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208320227 = 1712254131
BaseRepresentation
bin11000110101010…
…11011011100011
3112111222202121222
430122223123203
5411312221402
632401005255
75106456413
oct1432533343
9474882558
10208320227
11a7656085
125992382b
133420b40b
141d94a643
151344e7a2
hexc6ab6e3

208320227 has 4 divisors (see below), whose sum is σ = 220574376. Its totient is φ = 196066080.

The previous prime is 208320187. The next prime is 208320247. The reversal of 208320227 is 722023802.

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 208320227 - 26 = 208320163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208320196 and 208320205.

It is not an unprimeable number, because it can be changed into a prime (208320247) 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, 6127049 + ... + 6127082.

It is an arithmetic number, because the mean of its divisors is an integer number (55143594).

Almost surely, 2208320227 is an apocalyptic number.

208320227 is a deficient number, since it is larger than the sum of its proper divisors (12254149).

208320227 is a wasteful number, since it uses less digits than its factorization.

208320227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254148.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 208320227 is about 14433.3027058951. The cubic root of 208320227 is about 592.8031190665.

The spelling of 208320227 in words is "two hundred eight million, three hundred twenty thousand, two hundred twenty-seven".

Divisors: 1 17 12254131 208320227