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227285365 = 545457073
BaseRepresentation
bin11011000110000…
…01100101110101
3120211200021220111
431203001211311
5431141112430
634315303021
75426615356
oct1543014565
9524607814
10227285365
1110732994a
126414aa71
133811b7a8
1422285d2d
1514e48c2a
hexd8c1975

227285365 has 4 divisors (see below), whose sum is σ = 272742444. Its totient is φ = 181828288.

The previous prime is 227285323. The next prime is 227285369. The reversal of 227285365 is 563582722.

227285365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63266116 + 164019249 = 7954^2 + 12807^2 .

It is a cyclic number.

It is not a de Polignac number, because 227285365 - 217 = 227154293 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227285369) 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, 22728532 + ... + 22728541.

It is an arithmetic number, because the mean of its divisors is an integer number (68185611).

Almost surely, 2227285365 is an apocalyptic number.

It is an amenable number.

227285365 is a deficient number, since it is larger than the sum of its proper divisors (45457079).

227285365 is an equidigital number, since it uses as much as digits as its factorization.

227285365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457078.

The product of its digits is 201600, while the sum is 40.

The square root of 227285365 is about 15075.9863690572. The cubic root of 227285365 is about 610.2725334207.

The spelling of 227285365 in words is "two hundred twenty-seven million, two hundred eighty-five thousand, three hundred sixty-five".

Divisors: 1 5 45457073 227285365