Search a number
-
+
27161047 = 167162641
BaseRepresentation
bin110011110011…
…1000111010111
31220002220221201
41213213013113
523423123142
62410053331
7446602504
oct147470727
956086851
1027161047
1114371551
12911a247
13581ca34
1438704ab
1525b7ab7
hex19e71d7

27161047 has 4 divisors (see below), whose sum is σ = 27323856. Its totient is φ = 26998240.

The previous prime is 27161039. The next prime is 27161059. The reversal of 27161047 is 74016172.

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 27161047 - 23 = 27161039 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 (27161027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81154 + ... + 81487.

It is an arithmetic number, because the mean of its divisors is an integer number (6830964).

Almost surely, 227161047 is an apocalyptic number.

27161047 is a deficient number, since it is larger than the sum of its proper divisors (162809).

27161047 is a wasteful number, since it uses less digits than its factorization.

27161047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162808.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 27161047 is about 5211.6261377808. The cubic root of 27161047 is about 300.5952883616.

The spelling of 27161047 in words is "twenty-seven million, one hundred sixty-one thousand, forty-seven".

Divisors: 1 167 162641 27161047