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228158027 = 233979219
BaseRepresentation
bin11011001100101…
…10101001001011
3120220022121222022
431212112221023
5431402024102
634350115055
75440211516
oct1546265113
9526277868
10228158027
11107875559
12644aba8b
1338365a66
1422431d7d
151506c5a2
hexd996a4b

228158027 has 4 divisors (see below), whose sum is σ = 229137480. Its totient is φ = 227178576.

The previous prime is 228158011. The next prime is 228158041. The reversal of 228158027 is 720851822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228158027 - 24 = 228158011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228158527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489377 + ... + 489842.

It is an arithmetic number, because the mean of its divisors is an integer number (57284370).

Almost surely, 2228158027 is an apocalyptic number.

228158027 is a deficient number, since it is larger than the sum of its proper divisors (979453).

228158027 is an equidigital number, since it uses as much as digits as its factorization.

228158027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979452.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 228158027 is about 15104.9007610113. The cubic root of 228158027 is about 611.0525829261.

The spelling of 228158027 in words is "two hundred twenty-eight million, one hundred fifty-eight thousand, twenty-seven".

Divisors: 1 233 979219 228158027