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330331220 = 22541939419
BaseRepresentation
bin10011101100000…
…111010001010100
3212000120120020122
4103230013101110
51134031044340
652440051112
711120524532
oct2354072124
9760516218
10330331220
1115a51080a
1292763a98
135358a77b
1431c2b152
151e000db5
hex13b07454

330331220 has 24 divisors (see below), whose sum is σ = 695368800. Its totient is φ = 131813792.

The previous prime is 330331213. The next prime is 330331223. The reversal of 330331220 is 22133033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330331223) by changing a digit.

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, 11330 + ... + 28089.

It is an arithmetic number, because the mean of its divisors is an integer number (28973700).

Almost surely, 2330331220 is an apocalyptic number.

It is an amenable number.

330331220 is an abundant number, since it is smaller than the sum of its proper divisors (365037580).

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

330331220 is a wasteful number, since it uses less digits than its factorization.

330331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39847 (or 39845 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 330331220 is about 18175.0163686309. The cubic root of 330331220 is about 691.2734447215.

Adding to 330331220 its reverse (22133033), we get a palindrome (352464253).

The spelling of 330331220 in words is "three hundred thirty million, three hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 419 838 1676 2095 4190 8380 39419 78838 157676 197095 394190 788380 16516561 33033122 66066244 82582805 165165610 330331220