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228327277 is a prime number
BaseRepresentation
bin11011001101111…
…11111101101101
3120220122020010211
431212333331231
5431422433102
634353502421
75441515123
oct1546777555
9526566124
10228327277
11107980732
1264571a11
13383c4ac9
1422477913
15150a27d7
hexd9bff6d

228327277 has 2 divisors, whose sum is σ = 228327278. Its totient is φ = 228327276.

The previous prime is 228327271. The next prime is 228327287. The reversal of 228327277 is 772723822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185477161 + 42850116 = 13619^2 + 6546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228327277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228327271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114163638 + 114163639.

It is an arithmetic number, because the mean of its divisors is an integer number (114163639).

Almost surely, 2228327277 is an apocalyptic number.

It is an amenable number.

228327277 is a deficient number, since it is larger than the sum of its proper divisors (1).

228327277 is an equidigital number, since it uses as much as digits as its factorization.

228327277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 40.

The square root of 228327277 is about 15110.5022087289. The cubic root of 228327277 is about 611.2036406363.

The spelling of 228327277 in words is "two hundred twenty-eight million, three hundred twenty-seven thousand, two hundred seventy-seven".