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229191349 is a prime number
BaseRepresentation
bin11011010100100…
…10111010110101
3120222021010102111
431222102322311
5432133110344
634424211021
75452044232
oct1552227265
9528233374
10229191349
11108410942
1264909a71
13386381aa
1422620789
15151c3834
hexda92eb5

229191349 has 2 divisors, whose sum is σ = 229191350. Its totient is φ = 229191348.

The previous prime is 229191329. The next prime is 229191367. The reversal of 229191349 is 943191922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190937124 + 38254225 = 13818^2 + 6185^2 .

It is a cyclic number.

It is not a de Polignac number, because 229191349 - 215 = 229158581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229191329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114595674 + 114595675.

It is an arithmetic number, because the mean of its divisors is an integer number (114595675).

Almost surely, 2229191349 is an apocalyptic number.

It is an amenable number.

229191349 is a deficient number, since it is larger than the sum of its proper divisors (1).

229191349 is an equidigital number, since it uses as much as digits as its factorization.

229191349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 229191349 is about 15139.0669791768. The cubic root of 229191349 is about 611.9736744126.

The spelling of 229191349 in words is "two hundred twenty-nine million, one hundred ninety-one thousand, three hundred forty-nine".