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12370313 = 97127529
BaseRepresentation
bin101111001100…
…000110001001
3212021110212202
4233030012021
511131322223
61121045545
7210101024
oct57140611
925243782
1012370313
116a89aaa
1241868b5
132741717
1419001bb
151145428
hexbcc189

12370313 has 4 divisors (see below), whose sum is σ = 12497940. Its totient is φ = 12242688.

The previous prime is 12370307. The next prime is 12370331. The reversal of 12370313 is 31307321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31307321 = 48016521.

It can be written as a sum of positive squares in 2 ways, for example, as 5442889 + 6927424 = 2333^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 12370313 - 26 = 12370249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12376313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63668 + ... + 63861.

It is an arithmetic number, because the mean of its divisors is an integer number (3124485).

Almost surely, 212370313 is an apocalyptic number.

It is an amenable number.

12370313 is a deficient number, since it is larger than the sum of its proper divisors (127627).

12370313 is an equidigital number, since it uses as much as digits as its factorization.

12370313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127626.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 12370313 is about 3517.1455756053. The cubic root of 12370313 is about 231.2740449310.

Adding to 12370313 its reverse (31307321), we get a palindrome (43677634).

The spelling of 12370313 in words is "twelve million, three hundred seventy thousand, three hundred thirteen".

Divisors: 1 97 127529 12370313