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12808501 is a prime number
BaseRepresentation
bin110000110111…
…000100110101
3220002201221221
4300313010311
511234333001
61134310341
7213604366
oct60670465
926081857
1012808501
117259242
1243583b1
132865cc4
1419b5b6d
1511d01a1
hexc37135

12808501 has 2 divisors, whose sum is σ = 12808502. Its totient is φ = 12808500.

The previous prime is 12808483. The next prime is 12808511. The reversal of 12808501 is 10580821.

12808501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9006001 + 3802500 = 3001^2 + 1950^2 .

It is an emirp because it is prime and its reverse (10580821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12808501 - 25 = 12808469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12808511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404250 + 6404251.

It is an arithmetic number, because the mean of its divisors is an integer number (6404251).

Almost surely, 212808501 is an apocalyptic number.

It is an amenable number.

12808501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12808501 is an equidigital number, since it uses as much as digits as its factorization.

12808501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 12808501 is about 3578.8966176742. The cubic root of 12808501 is about 233.9731931694.

The spelling of 12808501 in words is "twelve million, eight hundred eight thousand, five hundred one".