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98281 = 293389
BaseRepresentation
bin10111111111101001
311222211001
4113333221
511121111
62035001
7556351
oct277751
9158731
1098281
1167927
1248a61
1335971
1427b61
151e1c1
hex17fe9

98281 has 4 divisors (see below), whose sum is σ = 101700. Its totient is φ = 94864.

The previous prime is 98269. The next prime is 98297. The reversal of 98281 is 18289.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78400 + 19881 = 280^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 98281 - 211 = 96233 is a prime.

It is a super-2 number, since 2×982812 = 19318309922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (25425).

298281 is an apocalyptic number.

It is an amenable number.

98281 is a deficient number, since it is larger than the sum of its proper divisors (3419).

98281 is a wasteful number, since it uses less digits than its factorization.

98281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418.

The product of its digits is 1152, while the sum is 28.

The square root of 98281 is about 313.4980063732. The cubic root of 98281 is about 46.1483866049.

It can be divided in two parts, 9 and 8281, that multiplied together give a square (74529 = 2732).

The spelling of 98281 in words is "ninety-eight thousand, two hundred eighty-one".

Divisors: 1 29 3389 98281