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12304202213 = 41261119993
BaseRepresentation
bin10110111010110001…
…10011100111100101
31011202111112020100002
423131120303213211
5200144333432323
65352533431045
7613623664442
oct133530634745
934674466302
1012304202213
115244446266
12247479b485
1312111a4234
1484a1a69c9
154c030e828
hex2dd6339e5

12304202213 has 12 divisors (see below), whose sum is σ = 12818479044. Its totient is φ = 11807212800.

The previous prime is 12304202179. The next prime is 12304202243. The reversal of 12304202213 is 31220240321.

It can be written as a sum of positive squares in 6 ways, for example, as 9944477284 + 2359724929 = 99722^2 + 48577^2 .

It is not a de Polignac number, because 12304202213 - 218 = 12303940069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304202243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42545 + ... + 162537.

It is an arithmetic number, because the mean of its divisors is an integer number (1068206587).

Almost surely, 212304202213 is an apocalyptic number.

It is an amenable number.

12304202213 is a deficient number, since it is larger than the sum of its proper divisors (514276831).

12304202213 is an equidigital number, since it uses as much as digits as its factorization.

12304202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120136 (or 120095 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12304202213 its reverse (31220240321), we get a palindrome (43524442534).

The spelling of 12304202213 in words is "twelve billion, three hundred four million, two hundred two thousand, two hundred thirteen".

Divisors: 1 41 61 1681 2501 102541 119993 4919713 7319573 201708233 300102493 12304202213