Search a number
-
+
27823047 = 371324907
BaseRepresentation
bin110101000100…
…0101111000111
31221100120001020
41222020233013
524110314142
62432202223
7455330520
oct152105707
957316036
1027823047
111478395a
129399373
1359c2155
1439a3847
152698cec
hex1a88bc7

27823047 has 8 divisors (see below), whose sum is σ = 42397056. Its totient is φ = 15898872.

The previous prime is 27823009. The next prime is 27823063. The reversal of 27823047 is 74032872.

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

It is not a de Polignac number, because 27823047 - 28 = 27822791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27822999 and 27823017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27823097) 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, 662433 + ... + 662474.

It is an arithmetic number, because the mean of its divisors is an integer number (5299632).

Almost surely, 227823047 is an apocalyptic number.

27823047 is a deficient number, since it is larger than the sum of its proper divisors (14574009).

27823047 is a wasteful number, since it uses less digits than its factorization.

27823047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324917.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 27823047 is about 5274.7556341503. The cubic root of 27823047 is about 303.0178621194.

The spelling of 27823047 in words is "twenty-seven million, eight hundred twenty-three thousand, forty-seven".

Divisors: 1 3 7 21 1324907 3974721 9274349 27823047