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248987 is a prime number
BaseRepresentation
bin111100110010011011
3110122112202
4330302123
530431422
65200415
72054624
oct746233
9418482
10248987
11160082
1210010b
138943b
1466a4b
154db92
hex3cc9b

248987 has 2 divisors, whose sum is σ = 248988. Its totient is φ = 248986.

The previous prime is 248981. The next prime is 249017. The reversal of 248987 is 789842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248987 - 24 = 248971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 248987.

It is not a weakly prime, because it can be changed into another prime (248981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124493 + 124494.

It is an arithmetic number, because the mean of its divisors is an integer number (124494).

2248987 is an apocalyptic number.

248987 is a deficient number, since it is larger than the sum of its proper divisors (1).

248987 is an equidigital number, since it uses as much as digits as its factorization.

248987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 248987 is about 498.9859717467. The cubic root of 248987 is about 62.9108506434.

The spelling of 248987 in words is "two hundred forty-eight thousand, nine hundred eighty-seven".