Search a number
-
+
28676732 = 2274492281
BaseRepresentation
bin110110101100…
…1001001111100
31222221221002012
41231121021330
524320123412
62502350352
7465514430
oct155311174
958857065
1028676732
1115207287
12972b3b8
135c308a6
143b469c0
1527b6c22
hex1b5927c

28676732 has 24 divisors (see below), whose sum is σ = 57506400. Its totient is φ = 12257280.

The previous prime is 28676729. The next prime is 28676759. The reversal of 28676732 is 23767682.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28676732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11432 + ... + 13712.

It is an arithmetic number, because the mean of its divisors is an integer number (2396100).

Almost surely, 228676732 is an apocalyptic number.

It is an amenable number.

28676732 is an abundant number, since it is smaller than the sum of its proper divisors (28829668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28676732 is a wasteful number, since it uses less digits than its factorization.

28676732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2739 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 28676732 is about 5355.0660126650. The cubic root of 28676732 is about 306.0858260971.

The spelling of 28676732 in words is "twenty-eight million, six hundred seventy-six thousand, seven hundred thirty-two".

Divisors: 1 2 4 7 14 28 449 898 1796 2281 3143 4562 6286 9124 12572 15967 31934 63868 1024169 2048338 4096676 7169183 14338366 28676732