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12848749 is a prime number
BaseRepresentation
bin110001000000…
…111001101101
3220011210011121
4301000321231
511242124444
61135220541
7214132624
oct61007155
926153147
1012848749
117286501
124377751
13287b414
1419c66bb
1511dc084
hexc40e6d

12848749 has 2 divisors, whose sum is σ = 12848750. Its totient is φ = 12848748.

The previous prime is 12848747. The next prime is 12848767. The reversal of 12848749 is 94784821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8468100 + 4380649 = 2910^2 + 2093^2 .

It is an emirp because it is prime and its reverse (94784821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12848749 - 21 = 12848747 is a prime.

Together with 12848747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12848747) 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, 6424374 + 6424375.

It is an arithmetic number, because the mean of its divisors is an integer number (6424375).

Almost surely, 212848749 is an apocalyptic number.

It is an amenable number.

12848749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12848749 is an equidigital number, since it uses as much as digits as its factorization.

12848749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 12848749 is about 3584.5151694476. The cubic root of 12848749 is about 234.2180073146.

The spelling of 12848749 in words is "twelve million, eight hundred forty-eight thousand, seven hundred forty-nine".