Search a number
-
+
28606544 = 248392131
BaseRepresentation
bin110110100100…
…0000001010000
31222211100210122
41231020001100
524310402134
62501045412
7465103001
oct155100120
958740718
1028606544
111516957a
1296b6868
135c07965
143b291a8
1527a102e
hex1b48050

28606544 has 20 divisors (see below), whose sum is σ = 55517280. Its totient is φ = 14279520.

The previous prime is 28606519. The next prime is 28606553. The reversal of 28606544 is 44560682.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12359 + ... + 14489.

It is an arithmetic number, because the mean of its divisors is an integer number (2775864).

Almost surely, 228606544 is an apocalyptic number.

It is an amenable number.

28606544 is a deficient number, since it is larger than the sum of its proper divisors (26910736).

28606544 is a wasteful number, since it uses less digits than its factorization.

28606544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 28606544 is about 5348.5085771643. The cubic root of 28606544 is about 305.8359010213.

The spelling of 28606544 in words is "twenty-eight million, six hundred six thousand, five hundred forty-four".

Divisors: 1 2 4 8 16 839 1678 2131 3356 4262 6712 8524 13424 17048 34096 1787909 3575818 7151636 14303272 28606544