Search a number
-
+
27668836 = 2213532093
BaseRepresentation
bin110100110001…
…1000101100100
31221001201111201
41221203011210
524040400321
62425012244
7454116106
oct151430544
957051451
1027668836
1114689008
129324084
135969bc0
143963576
152668291
hex1a63164

27668836 has 12 divisors (see below), whose sum is σ = 52145212. Its totient is φ = 12770208.

The previous prime is 27668831. The next prime is 27668863. The reversal of 27668836 is 63886672.

It can be written as a sum of positive squares in 2 ways, for example, as 1454436 + 26214400 = 1206^2 + 5120^2 .

It is not an unprimeable number, because it can be changed into a prime (27668831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265995 + ... + 266098.

Almost surely, 227668836 is an apocalyptic number.

27668836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27668836 is a deficient number, since it is larger than the sum of its proper divisors (24476376).

27668836 is a wasteful number, since it uses less digits than its factorization.

27668836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532110 (or 532108 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 27668836 is about 5260.1174891822. The cubic root of 27668836 is about 302.4569927247.

The spelling of 27668836 in words is "twenty-seven million, six hundred sixty-eight thousand, eight hundred thirty-six".

Divisors: 1 2 4 13 26 52 532093 1064186 2128372 6917209 13834418 27668836