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228695471 is a prime number
BaseRepresentation
bin11011010000110…
…01110110101111
3120221022221012122
431220121312233
5432021223341
634405423155
75444610434
oct1550316657
9527287178
10228695471
11108102324
126470aabb
13384c3584
1422531b8b
151512694b
hexda19daf

228695471 has 2 divisors, whose sum is σ = 228695472. Its totient is φ = 228695470.

The previous prime is 228695443. The next prime is 228695501. The reversal of 228695471 is 174596822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228695471 is a prime.

It is a super-3 number, since 3×2286954713 (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228695671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114347735 + 114347736.

It is an arithmetic number, because the mean of its divisors is an integer number (114347736).

Almost surely, 2228695471 is an apocalyptic number.

228695471 is a deficient number, since it is larger than the sum of its proper divisors (1).

228695471 is an equidigital number, since it uses as much as digits as its factorization.

228695471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 228695471 is about 15122.6806816781. The cubic root of 228695471 is about 611.5320006689.

The spelling of 228695471 in words is "two hundred twenty-eight million, six hundred ninety-five thousand, four hundred seventy-one".