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450212 = 22722297
BaseRepresentation
bin1101101111010100100
3211212120112
41231322210
5103401322
613352152
73553400
oct1557244
9755515
10450212
11288284
12198658
13129bc9
14ba100
158d5e2
hex6dea4

450212 has 18 divisors (see below), whose sum is σ = 916902. Its totient is φ = 192864.

The previous prime is 450209. The next prime is 450217. The reversal of 450212 is 212054.

It can be written as a sum of positive squares in only one way, i.e., 379456 + 70756 = 616^2 + 266^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (450217) 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 in 5 ways as a sum of consecutive naturals, for example, 953 + ... + 1344.

It is an arithmetic number, because the mean of its divisors is an integer number (50939).

2450212 is an apocalyptic number.

It is an amenable number.

450212 is an abundant number, since it is smaller than the sum of its proper divisors (466690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450212 is a wasteful number, since it uses less digits than its factorization.

450212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 450212 is about 670.9783901140. The cubic root of 450212 is about 76.6429752464.

Adding to 450212 its reverse (212054), we get a palindrome (662266).

The spelling of 450212 in words is "four hundred fifty thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 196 2297 4594 9188 16079 32158 64316 112553 225106 450212