Search a number
-
+
28038583 is a prime number
BaseRepresentation
bin110101011110…
…1010110110111
31221202111201001
41222331112313
524134213313
62440544131
7460216066
oct152752667
957674631
1028038583
1114910891
129482047
135a692a1
143a1c1dd
1526dcadd
hex1abd5b7

28038583 has 2 divisors, whose sum is σ = 28038584. Its totient is φ = 28038582.

The previous prime is 28038551. The next prime is 28038599. The reversal of 28038583 is 38583082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28038583 - 25 = 28038551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28038533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14019291 + 14019292.

It is an arithmetic number, because the mean of its divisors is an integer number (14019292).

Almost surely, 228038583 is an apocalyptic number.

28038583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28038583 is an equidigital number, since it uses as much as digits as its factorization.

28038583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 28038583 is about 5295.1471178807. The cubic root of 28038583 is about 303.7983102102.

The spelling of 28038583 in words is "twenty-eight million, thirty-eight thousand, five hundred eighty-three".