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27294961 = 98327767
BaseRepresentation
bin110100000011…
…1110011110001
31220100201122111
41220013303301
523441414321
62413005321
7451001101
oct150076361
956321574
1027294961
1114453121
129183841
135868985
1438a7201
1525e25e1
hex1a07cf1

27294961 has 4 divisors (see below), whose sum is σ = 27323712. Its totient is φ = 27266212.

The previous prime is 27294923. The next prime is 27294983. The reversal of 27294961 is 16949272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27294961 - 27 = 27294833 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27294901) 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, 12901 + ... + 14866.

It is an arithmetic number, because the mean of its divisors is an integer number (6830928).

Almost surely, 227294961 is an apocalyptic number.

It is an amenable number.

27294961 is a deficient number, since it is larger than the sum of its proper divisors (28751).

27294961 is an equidigital number, since it uses as much as digits as its factorization.

27294961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28750.

The product of its digits is 54432, while the sum is 40.

The square root of 27294961 is about 5224.4579623153. The cubic root of 27294961 is about 301.0884939745.

The spelling of 27294961 in words is "twenty-seven million, two hundred ninety-four thousand, nine hundred sixty-one".

Divisors: 1 983 27767 27294961