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228230443 = 789366341
BaseRepresentation
bin11011001101010…
…00010100101011
3120220110022022101
431212220110223
5431411333233
634351434231
75440632610
oct1546502453
9526408271
10228230443
11107914a01
1264525977
133838c9cc
1422450507
1515083c7d
hexd9a852b

228230443 has 8 divisors (see below), whose sum is σ = 263766240. Its totient is φ = 193427520.

The previous prime is 228230441. The next prime is 228230501. The reversal of 228230443 is 344032822.

228230443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228230443 - 21 = 228230441 is a prime.

It is a super-2 number, since 2×2282304432 = 104178270223952498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228230441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182548 + ... + 183793.

It is an arithmetic number, because the mean of its divisors is an integer number (32970780).

Almost surely, 2228230443 is an apocalyptic number.

228230443 is a deficient number, since it is larger than the sum of its proper divisors (35535797).

228230443 is an equidigital number, since it uses as much as digits as its factorization.

228230443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366437.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 228230443 is about 15107.2976736410. The cubic root of 228230443 is about 611.1172242388.

The spelling of 228230443 in words is "two hundred twenty-eight million, two hundred thirty thousand, four hundred forty-three".

Divisors: 1 7 89 623 366341 2564387 32604349 228230443