Search a number
-
+
27342911 = 29942859
BaseRepresentation
bin110100001001…
…1100000111111
31220110011102102
41220103200333
523444433121
62414015315
7451260641
oct150234077
956404372
1027342911
1114486152
1291a753b
13588474b
1438ba891
15260190b
hex1a1383f

27342911 has 4 divisors (see below), whose sum is σ = 28285800. Its totient is φ = 26400024.

The previous prime is 27342893. The next prime is 27342923. The reversal of 27342911 is 11924372.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27342911 - 214 = 27326527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 942859 = 27342911 / (2 + 7 + 3 + 4 + 2 + 9 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312911) 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 3 ways as a sum of consecutive naturals, for example, 471401 + ... + 471458.

It is an arithmetic number, because the mean of its divisors is an integer number (7071450).

Almost surely, 227342911 is an apocalyptic number.

27342911 is the 2339-th centered decagonal number.

27342911 is a deficient number, since it is larger than the sum of its proper divisors (942889).

27342911 is an equidigital number, since it uses as much as digits as its factorization.

27342911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942888.

The product of its digits is 3024, while the sum is 29.

The square root of 27342911 is about 5229.0449414783. The cubic root of 27342911 is about 301.2647016809.

The spelling of 27342911 in words is "twenty-seven million, three hundred forty-two thousand, nine hundred eleven".

Divisors: 1 29 942859 27342911