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2004223212 = 223255672867
BaseRepresentation
bin111011101110110…
…0000010011101100
312011200022002101100
41313131200103230
513101040120322
6530513243100
7100444421235
oct16735402354
95150262340
102004223212
11939371622
1247b263490
1325c2c56c4
1415027808c
15bae48dac
hex777604ec

2004223212 has 18 divisors (see below), whose sum is σ = 5066230988. Its totient is φ = 668074392.

The previous prime is 2004223201. The next prime is 2004223223. The reversal of 2004223212 is 2123224002.

2004223212 is a `hidden beast` number, since 200 + 422 + 32 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (2004223201) and next prime (2004223223).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27836398 + ... + 27836469.

Almost surely, 22004223212 is an apocalyptic number.

It is an amenable number.

2004223212 is an abundant number, since it is smaller than the sum of its proper divisors (3062007776).

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

2004223212 is a wasteful number, since it uses less digits than its factorization.

2004223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55672877 (or 55672872 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2004223212 is about 44768.5515959585. The cubic root of 2004223212 is about 1260.8072453715.

Adding to 2004223212 its reverse (2123224002), we get a palindrome (4127447214).

The spelling of 2004223212 in words is "two billion, four million, two hundred twenty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 55672867 111345734 167018601 222691468 334037202 501055803 668074404 1002111606 2004223212