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12831383 is a prime number
BaseRepresentation
bin110000111100…
…101010010111
3220010220100102
4300330222113
511241101013
61135004315
7214031165
oct60745227
926126312
1012831383
117274454
12436969b
132873546
1419c0235
1511d6d58
hexc3ca97

12831383 has 2 divisors, whose sum is σ = 12831384. Its totient is φ = 12831382.

The previous prime is 12831361. The next prime is 12831391. The reversal of 12831383 is 38313821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12831383 - 28 = 12831127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12831083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6415691 + 6415692.

It is an arithmetic number, because the mean of its divisors is an integer number (6415692).

Almost surely, 212831383 is an apocalyptic number.

12831383 is a deficient number, since it is larger than the sum of its proper divisors (1).

12831383 is an equidigital number, since it uses as much as digits as its factorization.

12831383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 12831383 is about 3582.0919865352. The cubic root of 12831383 is about 234.1124389627.

The spelling of 12831383 in words is "twelve million, eight hundred thirty-one thousand, three hundred eighty-three".