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12331212002 = 219217079241
BaseRepresentation
bin10110111101111111…
…10101110011100010
31011211101100110210122
423132333311303202
5200223242241002
65355340400242
7614402400254
oct133677656342
934741313718
1012331212002
1152587140aa
122481846082
131216970165
1484d9d7cd4
154c28976a2
hex2deff5ce2

12331212002 has 12 divisors (see below), whose sum is σ = 19521573606. Its totient is φ = 5841100080.

The previous prime is 12331211969. The next prime is 12331212007. The reversal of 12331212002 is 20021213321.

It can be written as a sum of positive squares in only one way, i.e., 8841828961 + 3489383041 = 94031^2 + 59071^2 .

It is not an unprimeable number, because it can be changed into a prime (12331212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8538899 + ... + 8540342.

Almost surely, 212331212002 is an apocalyptic number.

12331212002 is a deficient number, since it is larger than the sum of its proper divisors (7190361604).

12331212002 is a wasteful number, since it uses less digits than its factorization.

12331212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17079281 (or 17079262 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12331212002 its reverse (20021213321), we get a palindrome (32352425323).

The spelling of 12331212002 in words is "twelve billion, three hundred thirty-one million, two hundred twelve thousand, two".

Divisors: 1 2 19 38 361 722 17079241 34158482 324505579 649011158 6165606001 12331212002