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227145343 = 673390229
BaseRepresentation
bin11011000100111…
…11011001111111
3120211102011211111
431202133121333
5431122122333
634312302451
75425463215
oct1542373177
9524364744
10227145343
11107243727
12640a1a27
133809cb39
142224acb5
1514e1c4cd
hexd89f67f

227145343 has 4 divisors (see below), whose sum is σ = 230535640. Its totient is φ = 223755048.

The previous prime is 227145341. The next prime is 227145349. The reversal of 227145343 is 343541722.

It is a happy number.

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 227145343 - 21 = 227145341 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 (227145341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695048 + ... + 1695181.

It is an arithmetic number, because the mean of its divisors is an integer number (57633910).

Almost surely, 2227145343 is an apocalyptic number.

227145343 is a deficient number, since it is larger than the sum of its proper divisors (3390297).

227145343 is an equidigital number, since it uses as much as digits as its factorization.

227145343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390296.

The product of its digits is 20160, while the sum is 31.

The square root of 227145343 is about 15071.3417783554. The cubic root of 227145343 is about 610.1471856601.

The spelling of 227145343 in words is "two hundred twenty-seven million, one hundred forty-five thousand, three hundred forty-three".

Divisors: 1 67 3390229 227145343