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220331230 = 2573147589
BaseRepresentation
bin11010010000111…
…11110011011110
3120100120222121221
431020133303132
5422401044410
633510243554
75313533050
oct1510376336
9510528557
10220331230
1110340a129
12619565ba
1336855412
14213958d0
15145234da
hexd21fcde

220331230 has 16 divisors (see below), whose sum is σ = 453252960. Its totient is φ = 75542112.

The previous prime is 220331227. The next prime is 220331231. The reversal of 220331230 is 32133022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220331231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573725 + ... + 1573864.

It is an arithmetic number, because the mean of its divisors is an integer number (28328310).

Almost surely, 2220331230 is an apocalyptic number.

220331230 is an abundant number, since it is smaller than the sum of its proper divisors (232921730).

220331230 is a wasteful number, since it uses less digits than its factorization.

220331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147603.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 220331230 is about 14843.5585356073. The cubic root of 220331230 is about 603.9838873383.

Adding to 220331230 its reverse (32133022), we get a palindrome (252464252).

It can be divided in two parts, 2203 and 31230, that added together give a palindrome (33433).

The spelling of 220331230 in words is "two hundred twenty million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 3147589 6295178 15737945 22033123 31475890 44066246 110165615 220331230