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227281 is a prime number
BaseRepresentation
bin110111011111010001
3102112202211
4313133101
524233111
64512121
71634425
oct673721
9375684
10227281
1114583a
12ab641
137c5b2
145cb85
1547521
hex377d1

227281 has 2 divisors, whose sum is σ = 227282. Its totient is φ = 227280.

The previous prime is 227267. The next prime is 227299. The reversal of 227281 is 182722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180625 + 46656 = 425^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 227281 - 27 = 227153 is a prime.

It is a super-2 number, since 2×2272812 = 103313305922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (227231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113640 + 113641.

It is an arithmetic number, because the mean of its divisors is an integer number (113641).

2227281 is an apocalyptic number.

It is an amenable number.

227281 is a deficient number, since it is larger than the sum of its proper divisors (1).

227281 is an equidigital number, since it uses as much as digits as its factorization.

227281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 22.

The square root of 227281 is about 476.7399710534. The cubic root of 227281 is about 61.0268626648.

The spelling of 227281 in words is "two hundred twenty-seven thousand, two hundred eighty-one".