Search a number
-
+
27930277 = 29979929
BaseRepresentation
bin110101010001…
…0111010100101
31221120000010201
41222202322211
524122232102
62434350501
7456255244
oct152427245
957500121
1027930277
1114847481
12942b431
135a2bbbb
1439d095b
1526ba987
hex1aa2ea5

27930277 has 8 divisors (see below), whose sum is σ = 29194200. Its totient is φ = 26686464.

The previous prime is 27930251. The next prime is 27930283. The reversal of 27930277 is 77203972.

It can be written as a sum of positive squares in 4 ways, for example, as 1366561 + 26563716 = 1169^2 + 5154^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27930277 - 215 = 27897509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27930577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152 + ... + 7777.

It is an arithmetic number, because the mean of its divisors is an integer number (3649275).

Almost surely, 227930277 is an apocalyptic number.

It is an amenable number.

27930277 is a deficient number, since it is larger than the sum of its proper divisors (1263923).

27930277 is an equidigital number, since it uses as much as digits as its factorization.

27930277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 27930277 is about 5284.9103114433. The cubic root of 27930277 is about 303.4066399594.

The spelling of 27930277 in words is "twenty-seven million, nine hundred thirty thousand, two hundred seventy-seven".

Divisors: 1 29 97 2813 9929 287941 963113 27930277