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299 = 1323

• 299 can be written using four 4's:

See also 113.
299 has 4 divisors (see below), whose sum is σ = 336. Its totient is φ = 264.

The previous prime is 293. The next prime is 307. The reversal of 299 is 992.

299 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 299 - 24 = 283 is a prime.

It is a cake number, because a cake can be divided into 299 parts by 12 planar cuts.

It is a Duffinian number.

299 is an undulating number in base 11.

299 is a modest number, since divided by 99 gives 2 as remainder.

It is a plaindrome in base 10, base 15 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 299.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 24.

It is an arithmetic number, because the mean of its divisors is an integer number (84).

299 is a deficient number, since it is larger than the sum of its proper divisors (37).

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

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

The sum of its prime factors is 36.

The product of its digits is 162, while the sum is 20.

The square root of 299 is about 17.2916164658. The cubic root of 299 is about 6.6868830770.

It can be divided in two parts, 2 and 99, that added together give a palindrome (101).

The spelling of 299 in words is "two hundred ninety-nine", and thus it is an aban number.

Divisors: 1 13 23 299