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212230 = 25191117
BaseRepresentation
bin110011110100000110
3101210010101
4303310012
523242410
64314314
71542514
oct636406
9353111
10212230
111354a7
12a299a
13757a5
14574b4
1542d3a
hex33d06

212230 has 16 divisors (see below), whose sum is σ = 402480. Its totient is φ = 80352.

The previous prime is 212227. The next prime is 212239. The reversal of 212230 is 32212.

212230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 748.

It is an arithmetic number, because the mean of its divisors is an integer number (25155).

2212230 is an apocalyptic number.

212230 is a deficient number, since it is larger than the sum of its proper divisors (190250).

212230 is a wasteful number, since it uses less digits than its factorization.

212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 212230 is about 460.6842736626. The cubic root of 212230 is about 59.6488751229.

Adding to 212230 its reverse (32212), we get a palindrome (244442).

The spelling of 212230 in words is "two hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 1117 2234 5585 11170 21223 42446 106115 212230