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12807983 is a prime number
BaseRepresentation
bin110000110110…
…111100101111
3220002201020202
4300312330233
511234323413
61134304115
7213603026
oct60667457
926081222
1012807983
117258911
12435803b
1328659b6
1419b58bd
1511cee58
hexc36f2f

12807983 has 2 divisors, whose sum is σ = 12807984. Its totient is φ = 12807982.

The previous prime is 12807973. The next prime is 12807989. The reversal of 12807983 is 38970821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12807983 - 28 = 12807727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12807989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403991 + 6403992.

It is an arithmetic number, because the mean of its divisors is an integer number (6403992).

Almost surely, 212807983 is an apocalyptic number.

12807983 is a deficient number, since it is larger than the sum of its proper divisors (1).

12807983 is an equidigital number, since it uses as much as digits as its factorization.

12807983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12807983 is about 3578.8242482693. The cubic root of 12807983 is about 233.9700390208.

The spelling of 12807983 in words is "twelve million, eight hundred seven thousand, nine hundred eighty-three".