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228832379 is a prime number
BaseRepresentation
bin11011010001110…
…11010001111011
3120221120220000022
431220323101323
5432040114004
634412401055
75446020536
oct1550732173
9527526008
10228832379
11108196176
126477618b
1338540999
1422569a1d
15151522be
hexda3b47b

228832379 has 2 divisors, whose sum is σ = 228832380. Its totient is φ = 228832378.

The previous prime is 228832363. The next prime is 228832391. The reversal of 228832379 is 973238822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228832379 - 24 = 228832363 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228832349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114416189 + 114416190.

It is an arithmetic number, because the mean of its divisors is an integer number (114416190).

Almost surely, 2228832379 is an apocalyptic number.

228832379 is a deficient number, since it is larger than the sum of its proper divisors (1).

228832379 is an equidigital number, since it uses as much as digits as its factorization.

228832379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 228832379 is about 15127.2065828427. The cubic root of 228832379 is about 611.6540070520.

The spelling of 228832379 in words is "two hundred twenty-eight million, eight hundred thirty-two thousand, three hundred seventy-nine".