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220530033 = 351396529
BaseRepresentation
bin11010010010100…
…00010101110001
3120100222002100000
431021100111301
5422423430113
633514420213
75315321463
oct1511202561
9510862300
10220530033
11103535529
1261a31669
13368c4a59
1421408133
1514562373
hexd250571

220530033 has 24 divisors (see below), whose sum is σ = 332768800. Its totient is φ = 145939968.

The previous prime is 220530029. The next prime is 220530071. The reversal of 220530033 is 330035022.

It is not a de Polignac number, because 220530033 - 22 = 220530029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220529988 and 220530015.

It is not an unprimeable number, because it can be changed into a prime (220530733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30513 + ... + 37041.

Almost surely, 2220530033 is an apocalyptic number.

It is an amenable number.

220530033 is a deficient number, since it is larger than the sum of its proper divisors (112238767).

220530033 is an equidigital number, since it uses as much as digits as its factorization.

220530033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683 (or 6671 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 220530033 is about 14850.2536341976. The cubic root of 220530033 is about 604.1654892428.

Adding to 220530033 its reverse (330035022), we get a palindrome (550565055).

The spelling of 220530033 in words is "two hundred twenty million, five hundred thirty thousand, thirty-three".

Divisors: 1 3 9 27 81 139 243 417 1251 3753 6529 11259 19587 33777 58761 176283 528849 907531 1586547 2722593 8167779 24503337 73510011 220530033