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1220330204 = 22941324211
BaseRepresentation
bin100100010111100…
…1100001011011100
310011001021012022222
41020233030023130
54444401031304
6321031524512
742145431002
oct11057141334
93131235288
101220330204
11576932165
122a0829738
13165a91ca2
14b8102a72
15722044be
hex48bcc2dc

1220330204 has 12 divisors (see below), whose sum is σ = 2137853928. Its totient is φ = 609514800.

The previous prime is 1220330201. The next prime is 1220330213. The reversal of 1220330204 is 4020330221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220330201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158342 + ... + 165869.

It is an arithmetic number, because the mean of its divisors is an integer number (178154494).

Almost surely, 21220330204 is an apocalyptic number.

It is an amenable number.

1220330204 is a deficient number, since it is larger than the sum of its proper divisors (917523724).

1220330204 is a wasteful number, since it uses less digits than its factorization.

1220330204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325156 (or 325154 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1220330204 is about 34933.2249298572. The cubic root of 1220330204 is about 1068.6261238547.

Adding to 1220330204 its sum of digits (17), we get a palindrome (1220330221).

Adding to 1220330204 its reverse (4020330221), we get a palindrome (5240660425).

The spelling of 1220330204 in words is "one billion, two hundred twenty million, three hundred thirty thousand, two hundred four".

Divisors: 1 2 4 941 1882 3764 324211 648422 1296844 305082551 610165102 1220330204