• 298^{2} = 88804 is the smallest square that contains exactly three digits '8'.

• 298 can be written using four 4's:

298 has 4 divisors (see below), whose sum is σ = 450. Its totient is φ = 148.

The previous prime is 293. The next prime is 307. The reversal of 298 is 892.

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

It can be written as a sum of positive squares in only one way, i.e., 289 + 9 = 17^2 + 3^2 .

It is a fibodiv number, since the Fibonacci-like sequence with seeds 2 and 98 contains 298 itself.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 13, base 15 and base 16.

It is not an unprimeable number, because it can be changed into a prime (293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73 + ... + 76.

298 is a deficient number, since it is larger than the sum of its proper divisors (152).

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

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

The sum of its prime factors is 151.

The product of its digits is 144, while the sum is 19.

The square root of 298 is about 17.2626765016. The cubic root of 298 is about 6.6794200316.

It can be divided in two parts, 29 and 8, that multiplied together give a palindrome (232).

The spelling of 298 in words is "two hundred ninety-eight", and thus it is an aban number.

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