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280327 is a prime number
BaseRepresentation
bin1000100011100000111
3112020112111
41010130013
532432302
610001451
72245165
oct1043407
9466474
10280327
11181683
12116287
139a798
1474235
15580d7
hex44707

280327 has 2 divisors, whose sum is σ = 280328. Its totient is φ = 280326.

The previous prime is 280321. The next prime is 280337. The reversal of 280327 is 723082.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280327 - 27 = 280199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280298 and 280307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140163 + 140164.

It is an arithmetic number, because the mean of its divisors is an integer number (140164).

2280327 is an apocalyptic number.

280327 is a deficient number, since it is larger than the sum of its proper divisors (1).

280327 is an equidigital number, since it uses as much as digits as its factorization.

280327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 280327 is about 529.4591580094. The cubic root of 280327 is about 65.4467838837.

The spelling of 280327 in words is "two hundred eighty thousand, three hundred twenty-seven".