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228144727 is a prime number
BaseRepresentation
bin11011001100100…
…11011001010111
3120220021221201201
431212103121113
5431401112402
634345533331
75440124656
oct1546233127
9526257651
10228144727
11107866568
12644a4247
133835c9a5
142242b19d
1515068687
hexd993657

228144727 has 2 divisors, whose sum is σ = 228144728. Its totient is φ = 228144726.

The previous prime is 228144703. The next prime is 228144767. The reversal of 228144727 is 727441822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228144727 - 211 = 228142679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228144767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114072363 + 114072364.

It is an arithmetic number, because the mean of its divisors is an integer number (114072364).

Almost surely, 2228144727 is an apocalyptic number.

228144727 is a deficient number, since it is larger than the sum of its proper divisors (1).

228144727 is an equidigital number, since it uses as much as digits as its factorization.

228144727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50176, while the sum is 37.

The square root of 228144727 is about 15104.4605001304. The cubic root of 228144727 is about 611.0407093468.

The spelling of 228144727 in words is "two hundred twenty-eight million, one hundred forty-four thousand, seven hundred twenty-seven".