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330512020 = 22516525601
BaseRepresentation
bin10011101100110…
…011011010010100
3212000220202020221
4103230303122110
51134102341040
652444004124
711122206616
oct2354633224
9760822227
10330512020
1115a624633
1292830644
1353621b57
1431c76db6
151e03974a
hex13b33694

330512020 has 12 divisors (see below), whose sum is σ = 694075284. Its totient is φ = 132204800.

The previous prime is 330511999. The next prime is 330512033. The reversal of 330512020 is 20215033.

It can be written as a sum of positive squares in 2 ways, for example, as 189282564 + 141229456 = 13758^2 + 11884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 330511985 and 330512003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8262781 + ... + 8262820.

It is an arithmetic number, because the mean of its divisors is an integer number (57839607).

Almost surely, 2330512020 is an apocalyptic number.

It is an amenable number.

330512020 is an abundant number, since it is smaller than the sum of its proper divisors (363563264).

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

330512020 is a wasteful number, since it uses less digits than its factorization.

330512020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525610 (or 16525608 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 330512020 is about 18179.9895489519. The cubic root of 330512020 is about 691.3995398204.

Adding to 330512020 its reverse (20215033), we get a palindrome (350727053).

The spelling of 330512020 in words is "three hundred thirty million, five hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 16525601 33051202 66102404 82628005 165256010 330512020