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230221224 = 23331065839
BaseRepresentation
bin11011011100011…
…10010110101000
3121001012110011000
431232032112220
5432414034344
634502235000
75463563622
oct1556162650
9531173130
10230221224
11108a54682
1265125a60
1338908b9c
142280bc12
1515328a69
hexdb8e5a8

230221224 has 32 divisors (see below), whose sum is σ = 639504000. Its totient is φ = 76740336.

The previous prime is 230221223. The next prime is 230221231. The reversal of 230221224 is 422122032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 230221197 and 230221206.

It is not an unprimeable number, because it can be changed into a prime (230221223) 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, 532704 + ... + 533135.

It is an arithmetic number, because the mean of its divisors is an integer number (19984500).

Almost surely, 2230221224 is an apocalyptic number.

230221224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

230221224 is an abundant number, since it is smaller than the sum of its proper divisors (409282776).

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

230221224 is a wasteful number, since it uses less digits than its factorization.

230221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065854 (or 1065844 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 230221224 is about 15173.0426744276. The cubic root of 230221224 is about 612.8889426923. Note that the first 3 decimals are identical.

Adding to 230221224 its reverse (422122032), we get a palindrome (652343256).

The spelling of 230221224 in words is "two hundred thirty million, two hundred twenty-one thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 1065839 2131678 3197517 4263356 6395034 8526712 9592551 12790068 19185102 25580136 28777653 38370204 57555306 76740408 115110612 230221224