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12300440421 = 36761196221
BaseRepresentation
bin10110111010010100…
…11101001101100101
31011202020110010010110
423131022131031211
5200142403043141
65352321043233
7613550006223
oct133512351545
934666403113
1012300440421
115242306a45
122473486519
131210487c19
148498a7b13
154bed19e16
hex2dd29d365

12300440421 has 8 divisors (see below), whose sum is σ = 16645372384. Its totient is φ = 8077901040.

The previous prime is 12300440407. The next prime is 12300440437. The reversal of 12300440421 is 12404400321.

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

It is not a de Polignac number, because 12300440421 - 26 = 12300440357 is a prime.

It is a super-4 number, since 4×123004404214 (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300440821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30597910 + ... + 30598311.

It is an arithmetic number, because the mean of its divisors is an integer number (2080671548).

Almost surely, 212300440421 is an apocalyptic number.

It is an amenable number.

12300440421 is a deficient number, since it is larger than the sum of its proper divisors (4344931963).

12300440421 is an equidigital number, since it uses as much as digits as its factorization.

12300440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61196291.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12300440421 its reverse (12404400321), we get a palindrome (24704840742).

The spelling of 12300440421 in words is "twelve billion, three hundred million, four hundred forty thousand, four hundred twenty-one".

Divisors: 1 3 67 201 61196221 183588663 4100146807 12300440421