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227939444 = 22310918329
BaseRepresentation
bin11011001011000…
…01010001110100
3120212220112010122
431211201101310
5431323030234
634341311112
75435311325
oct1545412164
9525815118
10227939444
11107736307
1264405498
13382ba415
14223b644c
151502792e
hexd961474

227939444 has 12 divisors (see below), whose sum is σ = 399044100. Its totient is φ = 113926848.

The previous prime is 227939443. The next prime is 227939471. The reversal of 227939444 is 444939722.

It can be written as a sum of positive squares in 2 ways, for example, as 74476900 + 153462544 = 8630^2 + 12388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 227939395 and 227939404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227939443) 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, 3272 + ... + 21600.

It is an arithmetic number, because the mean of its divisors is an integer number (33253675).

Almost surely, 2227939444 is an apocalyptic number.

It is an amenable number.

227939444 is a deficient number, since it is larger than the sum of its proper divisors (171104656).

227939444 is a wasteful number, since it uses less digits than its factorization.

227939444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21442 (or 21440 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 227939444 is about 15097.6635278443. The cubic root of 227939444 is about 610.8573843253.

The spelling of 227939444 in words is "two hundred twenty-seven million, nine hundred thirty-nine thousand, four hundred forty-four".

Divisors: 1 2 4 3109 6218 12436 18329 36658 73316 56984861 113969722 227939444