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12888319 is a prime number
BaseRepresentation
bin110001001010…
…100011111111
3220020210110011
4301022203333
511244411234
61140124051
7214356163
oct61124377
926223404
1012888319
117303204
124396627
132893432
1419d6ca3
1511e8b64
hexc4a8ff

12888319 has 2 divisors, whose sum is σ = 12888320. Its totient is φ = 12888318.

The previous prime is 12888313. The next prime is 12888361. The reversal of 12888319 is 91388821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12888319 - 23 = 12888311 is a prime.

It is a super-2 number, since 2×128883192 = 332217533291522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12888311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6444159 + 6444160.

It is an arithmetic number, because the mean of its divisors is an integer number (6444160).

Almost surely, 212888319 is an apocalyptic number.

12888319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12888319 is an equidigital number, since it uses as much as digits as its factorization.

12888319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 40.

The square root of 12888319 is about 3590.0305012632. The cubic root of 12888319 is about 234.4581995345.

The spelling of 12888319 in words is "twelve million, eight hundred eighty-eight thousand, three hundred nineteen".