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27869305 = 534716063
BaseRepresentation
bin110101001010…
…0000001111001
31221102220111111
41222110001321
524113304210
62433200321
7455612422
oct152240171
957386444
1027869305
1114805692
1294000a1
135a0a219
1439b6649
1526a788a
hex1a94079

27869305 has 8 divisors (see below), whose sum is σ = 33541632. Its totient is φ = 22229808.

The previous prime is 27869297. The next prime is 27869311. The reversal of 27869305 is 50396872.

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 27869305 - 23 = 27869297 is a prime.

It is a super-2 number, since 2×278693052 = 1553396322366050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6297 + ... + 9766.

It is an arithmetic number, because the mean of its divisors is an integer number (4192704).

Almost surely, 227869305 is an apocalyptic number.

It is an amenable number.

27869305 is a deficient number, since it is larger than the sum of its proper divisors (5672327).

27869305 is a wasteful number, since it uses less digits than its factorization.

27869305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16415.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 27869305 is about 5279.1386608044. The cubic root of 27869305 is about 303.1856994680.

The spelling of 27869305 in words is "twenty-seven million, eight hundred sixty-nine thousand, three hundred five".

Divisors: 1 5 347 1735 16063 80315 5573861 27869305