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446 = 2223
BaseRepresentation
bin110111110
3121112
412332
53241
62022
71205
oct676
9545
10446
11376
12312
13284
1423c
151eb
hex1be

446 has 4 divisors (see below), whose sum is σ = 672. Its totient is φ = 222.

The previous prime is 443. The next prime is 449. The reversal of 446 is 644.

446 = 92 + 102 + ... + 122.

It is a happy number.

446 is nontrivially palindromic in base 8 and base 9.

446 is an esthetic number in base 8 and base 9, because in such bases its adjacent digits differ by 1.

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

It is an interprime number because it is at equal distance from previous prime (443) and next prime (449).

446 is an undulating number in base 8 and base 9.

It is a plaindrome in base 10, base 14 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110 + ... + 113.

It is an arithmetic number, because the mean of its divisors is an integer number (168).

446 is a deficient number, since it is larger than the sum of its proper divisors (226).

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

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

The sum of its prime factors is 225.

The product of its digits is 96, while the sum is 14.

The square root of 446 is about 21.1187120819. The cubic root of 446 is about 7.6403212496.

The spelling of 446 in words is "four hundred forty-six", and thus it is an aban number.

Divisors: 1 2 223 446