Search a number
-
+
28679041 is a prime number
BaseRepresentation
bin110110101100…
…1101110000001
31222222001020201
41231121232001
524320212131
62502405201
7465524236
oct155315601
958861221
1028679041
1115208a96
129730801
135c31961
143b4778d
1527b7761
hex1b59b81

28679041 has 2 divisors, whose sum is σ = 28679042. Its totient is φ = 28679040.

The previous prime is 28679039. The next prime is 28679047. The reversal of 28679041 is 14097682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16982641 + 11696400 = 4121^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 28679041 - 21 = 28679039 is a prime.

Together with 28679039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28679047) 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, 14339520 + 14339521.

It is an arithmetic number, because the mean of its divisors is an integer number (14339521).

Almost surely, 228679041 is an apocalyptic number.

It is an amenable number.

28679041 is a deficient number, since it is larger than the sum of its proper divisors (1).

28679041 is an equidigital number, since it uses as much as digits as its factorization.

28679041 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 37.

The square root of 28679041 is about 5355.2815985716. The cubic root of 28679041 is about 306.0940410406.

The spelling of 28679041 in words is "twenty-eight million, six hundred seventy-nine thousand, forty-one".