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12472393 is a prime number
BaseRepresentation
bin101111100101…
…000001001001
3212110122220111
4233211001021
511143104033
61123154321
7211004443
oct57450111
925418814
1012472393
11704976a
1242159a1
13277901b
141929493
1511657cd
hexbe5049

12472393 has 2 divisors, whose sum is σ = 12472394. Its totient is φ = 12472392.

The previous prime is 12472391. The next prime is 12472403. The reversal of 12472393 is 39327421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8363664 + 4108729 = 2892^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 12472393 - 21 = 12472391 is a prime.

Together with 12472391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12472391) 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 as a sum of consecutive naturals, namely, 6236196 + 6236197.

It is an arithmetic number, because the mean of its divisors is an integer number (6236197).

Almost surely, 212472393 is an apocalyptic number.

It is an amenable number.

12472393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12472393 is an equidigital number, since it uses as much as digits as its factorization.

12472393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 12472393 is about 3531.6275284916. The cubic root of 12472393 is about 231.9084619552.

The spelling of 12472393 in words is "twelve million, four hundred seventy-two thousand, three hundred ninety-three".