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330115220 = 225109151429
BaseRepresentation
bin10011101011010…
…010100010010100
3212000011120221122
4103223102202110
51134002141340
652431303112
711115635021
oct2353224224
9760146848
10330115220
1115a3834a6
129267aa98
1353513366
1431bb2548
151deabdb5
hex13ad2894

330115220 has 24 divisors (see below), whose sum is σ = 699606600. Its totient is φ = 130833792.

The previous prime is 330115213. The next prime is 330115243. The reversal of 330115220 is 22511033.

It can be written as a sum of positive squares in 4 ways, for example, as 25542916 + 304572304 = 5054^2 + 17452^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73535 + ... + 77894.

It is an arithmetic number, because the mean of its divisors is an integer number (29150275).

Almost surely, 2330115220 is an apocalyptic number.

It is an amenable number.

330115220 is an abundant number, since it is smaller than the sum of its proper divisors (369491380).

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

330115220 is a wasteful number, since it uses less digits than its factorization.

330115220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151547 (or 151545 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 330115220 is about 18169.0731739404. The cubic root of 330115220 is about 691.1227398007.

Adding to 330115220 its reverse (22511033), we get a palindrome (352626253).

The spelling of 330115220 in words is "three hundred thirty million, one hundred fifteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 151429 302858 605716 757145 1514290 3028580 16505761 33011522 66023044 82528805 165057610 330115220