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500030220 = 223519438623
BaseRepresentation
bin11101110011011…
…101101100001100
31021211220011111210
4131303131230030
52011001431340
6121341214420
715251121024
oct3563355414
91254804453
10500030220
11237288118
1211b561410
137c795a91
144a5a2a84
152dd72180
hex1dcddb0c

500030220 has 48 divisors (see below), whose sum is σ = 1473776640. Its totient is φ = 126323136.

The previous prime is 500030207. The next prime is 500030221. The reversal of 500030220 is 22030005.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 500030196 and 500030205.

It is not an unprimeable number, because it can be changed into a prime (500030221) 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 15 ways as a sum of consecutive naturals, for example, 218172 + ... + 220451.

It is an arithmetic number, because the mean of its divisors is an integer number (30703680).

Almost surely, 2500030220 is an apocalyptic number.

It is an amenable number.

500030220 is an abundant number, since it is smaller than the sum of its proper divisors (973746420).

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

500030220 is a wasteful number, since it uses less digits than its factorization.

500030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438654 (or 438652 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 500030220 is about 22361.3555045306. The cubic root of 500030220 is about 793.7165160819.

Adding to 500030220 its reverse (22030005), we get a palindrome (522060225).

The spelling of 500030220 in words is "five hundred million, thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 438623 877246 1315869 1754492 2193115 2631738 4386230 5263476 6579345 8333837 8772460 13158690 16667674 25001511 26317380 33335348 41669185 50003022 83338370 100006044 125007555 166676740 250015110 500030220