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12202306313 = 73167154881
BaseRepresentation
bin10110101110101000…
…00110101100001001
31011111101210101102212
423113110012230021
5144442242300223
65334453434505
7611245615031
oct132724065411
934441711385
1012202306313
1151a197a37a
12244663ba35
1311c60487c2
1483a8408c1
154b63d3278
hex2d7506b09

12202306313 has 4 divisors (see below), whose sum is σ = 12369461268. Its totient is φ = 12035151360.

The previous prime is 12202306289. The next prime is 12202306321. The reversal of 12202306313 is 31360320221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8562356089 + 3639950224 = 92533^2 + 60332^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202306313 - 220 = 12201257737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12202306343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83577368 + ... + 83577513.

It is an arithmetic number, because the mean of its divisors is an integer number (3092365317).

Almost surely, 212202306313 is an apocalyptic number.

It is an amenable number.

12202306313 is a deficient number, since it is larger than the sum of its proper divisors (167154955).

12202306313 is an equidigital number, since it uses as much as digits as its factorization.

12202306313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167154954.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12202306313 its reverse (31360320221), we get a palindrome (43562626534).

The spelling of 12202306313 in words is "twelve billion, two hundred two million, three hundred six thousand, three hundred thirteen".

Divisors: 1 73 167154881 12202306313