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228906079 is a prime number
BaseRepresentation
bin11011010010011…
…01010001011111
3120221201122002221
431221031101133
5432044443304
634414130211
75446445443
oct1551152137
9527648087
10228906079
11108236586
12647b0967
13385683ac
1422588823
1515169054
hexda4d45f

228906079 has 2 divisors, whose sum is σ = 228906080. Its totient is φ = 228906078.

The previous prime is 228906049. The next prime is 228906089. The reversal of 228906079 is 970609822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228906079 - 27 = 228905951 is a prime.

It is equal to p12585697 and since 228906079 and 12585697 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228906049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114453039 + 114453040.

It is an arithmetic number, because the mean of its divisors is an integer number (114453040).

Almost surely, 2228906079 is an apocalyptic number.

228906079 is a deficient number, since it is larger than the sum of its proper divisors (1).

228906079 is an equidigital number, since it uses as much as digits as its factorization.

228906079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 228906079 is about 15129.6423949808. The cubic root of 228906079 is about 611.7196650995.

The spelling of 228906079 in words is "two hundred twenty-eight million, nine hundred six thousand, seventy-nine".