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12303302221 = 73075725129
BaseRepresentation
bin10110111010101010…
…10111111001001101
31011202102211111210001
423131111113321031
5200144121132341
65352502244301
7613613225530
oct133525277115
934672744701
1012303302221
115243991071
122474426691
131210c4a6b2
1484a010a17
154c01d2d31
hex2dd557e4d

12303302221 has 8 divisors (see below), whose sum is σ = 14106720320. Its totient is φ = 10511335008.

The previous prime is 12303302213. The next prime is 12303302233. The reversal of 12303302221 is 12220330321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12303302221 - 23 = 12303302213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303302021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2860416 + ... + 2864713.

It is an arithmetic number, because the mean of its divisors is an integer number (1763340040).

Almost surely, 212303302221 is an apocalyptic number.

It is an amenable number.

12303302221 is a deficient number, since it is larger than the sum of its proper divisors (1803418099).

12303302221 is an equidigital number, since it uses as much as digits as its factorization.

12303302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5725443.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12303302221 its reverse (12220330321), we get a palindrome (24523632542).

The spelling of 12303302221 in words is "twelve billion, three hundred three million, three hundred two thousand, two hundred twenty-one".

Divisors: 1 7 307 2149 5725129 40075903 1757614603 12303302221