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228281041 is a prime number
BaseRepresentation
bin11011001101101…
…00101011010001
3120220112212201101
431212310223101
5431414443131
634352504401
75441233252
oct1546645321
9526485641
10228281041
11107949a1a
126454b101
13383a9a51
1422464b29
1515093c61
hexd9b4ad1

228281041 has 2 divisors, whose sum is σ = 228281042. Its totient is φ = 228281040.

The previous prime is 228280909. The next prime is 228281047. The reversal of 228281041 is 140182822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127780416 + 100500625 = 11304^2 + 10025^2 .

It is a cyclic number.

It is not a de Polignac number, because 228281041 - 29 = 228280529 is a prime.

It is a super-2 number, since 2×2282810412 = 104224467360087362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (228281047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114140520 + 114140521.

It is an arithmetic number, because the mean of its divisors is an integer number (114140521).

Almost surely, 2228281041 is an apocalyptic number.

It is an amenable number.

228281041 is a deficient number, since it is larger than the sum of its proper divisors (1).

228281041 is an equidigital number, since it uses as much as digits as its factorization.

228281041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 228281041 is about 15108.9722019732. The cubic root of 228281041 is about 611.1623818496.

The spelling of 228281041 in words is "two hundred twenty-eight million, two hundred eighty-one thousand, forty-one".