Search a number
-
+
28638083 is a prime number
BaseRepresentation
bin110110100111…
…1101110000011
31222212222001202
41231033232003
524312404313
62501451415
7465263645
oct155175603
958788052
1028638083
1115190241
129710b6b
135c19116
143b36895
1527aa558
hex1b4fb83

28638083 has 2 divisors, whose sum is σ = 28638084. Its totient is φ = 28638082.

The previous prime is 28638061. The next prime is 28638107. The reversal of 28638083 is 38083682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28638083 - 26 = 28638019 is a prime.

It is not a weakly prime, because it can be changed into another prime (28638383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14319041 + 14319042.

It is an arithmetic number, because the mean of its divisors is an integer number (14319042).

Almost surely, 228638083 is an apocalyptic number.

28638083 is a deficient number, since it is larger than the sum of its proper divisors (1).

28638083 is an equidigital number, since it uses as much as digits as its factorization.

28638083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 28638083 is about 5351.4561569726. The cubic root of 28638083 is about 305.9482554509.

The spelling of 28638083 in words is "twenty-eight million, six hundred thirty-eight thousand, eighty-three".