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227145349 is a prime number
BaseRepresentation
bin11011000100111…
…11011010000101
3120211102011211201
431202133122011
5431122122344
634312302501
75425463224
oct1542373205
9524364751
10227145349
11107243732
12640a1a31
133809cb42
142224acbb
1514e1c4d4
hexd89f685

227145349 has 2 divisors, whose sum is σ = 227145350. Its totient is φ = 227145348.

The previous prime is 227145341. The next prime is 227145377. The reversal of 227145349 is 943541722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214769025 + 12376324 = 14655^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 227145349 - 23 = 227145341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227145341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113572674 + 113572675.

It is an arithmetic number, because the mean of its divisors is an integer number (113572675).

Almost surely, 2227145349 is an apocalyptic number.

It is an amenable number.

227145349 is a deficient number, since it is larger than the sum of its proper divisors (1).

227145349 is an equidigital number, since it uses as much as digits as its factorization.

227145349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 227145349 is about 15071.3419774086. The cubic root of 227145349 is about 610.1471910324.

The spelling of 227145349 in words is "two hundred twenty-seven million, one hundred forty-five thousand, three hundred forty-nine".