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28087063 is a prime number
BaseRepresentation
bin110101100100…
…1001100010111
31221211222012121
41223021030113
524142241223
62442000411
7460510324
oct153111427
957758177
1028087063
1114944254
1294a6107
135a85384
143a31b4b
1526ec15d
hex1ac9317

28087063 has 2 divisors, whose sum is σ = 28087064. Its totient is φ = 28087062.

The previous prime is 28087061. The next prime is 28087099. The reversal of 28087063 is 36078082.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28087063 - 21 = 28087061 is a prime.

Together with 28087061, 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 (28087061) 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, 14043531 + 14043532.

It is an arithmetic number, because the mean of its divisors is an integer number (14043532).

Almost surely, 228087063 is an apocalyptic number.

28087063 is a deficient number, since it is larger than the sum of its proper divisors (1).

28087063 is an equidigital number, since it uses as much as digits as its factorization.

28087063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28087063 is about 5299.7229172854. The cubic root of 28087063 is about 303.9733031438.

The spelling of 28087063 in words is "twenty-eight million, eighty-seven thousand, sixty-three".