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227285 = 5131347
BaseRepresentation
bin110111011111010101
3102112202222
4313133111
524233120
64512125
71634432
oct673725
9375688
10227285
11145843
12ab645
137c5b6
145cb89
1547525
hex377d5

227285 has 8 divisors (see below), whose sum is σ = 275616. Its totient is φ = 179920.

The previous prime is 227281. The next prime is 227299. The reversal of 227285 is 582722.

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

It is not a de Polignac number, because 227285 - 22 = 227281 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 (227281) 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, 482 + ... + 828.

It is an arithmetic number, because the mean of its divisors is an integer number (34452).

2227285 is an apocalyptic number.

It is an amenable number.

227285 is a deficient number, since it is larger than the sum of its proper divisors (48331).

227285 is a wasteful number, since it uses less digits than its factorization.

227285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

The product of its digits is 2240, while the sum is 26.

The square root of 227285 is about 476.7441661940. The cubic root of 227285 is about 61.0272206739.

It can be divided in two parts, 227 and 285, that added together give a 9-th power (512 = 29).

The spelling of 227285 in words is "two hundred twenty-seven thousand, two hundred eighty-five".

Divisors: 1 5 131 347 655 1735 45457 227285