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228516871 = 1137935477
BaseRepresentation
bin11011001111011…
…10010000000111
3120220222212012211
431213232100013
5432000014441
634401524251
75443234642
oct1547562007
9526885184
10228516871
11107aa0120
1264643687
13384601ab
14224c6a59
15150dda81
hexd9ee407

228516871 has 8 divisors (see below), whose sum is σ = 249402384. Its totient is φ = 207649920.

The previous prime is 228516863. The next prime is 228516877. The reversal of 228516871 is 178615822.

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 228516871 - 23 = 228516863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228516877) 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, 38985 + ... + 44461.

It is an arithmetic number, because the mean of its divisors is an integer number (31175298).

Almost surely, 2228516871 is an apocalyptic number.

228516871 is a deficient number, since it is larger than the sum of its proper divisors (20885513).

228516871 is a wasteful number, since it uses less digits than its factorization.

228516871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281.

The product of its digits is 53760, while the sum is 40.

The square root of 228516871 is about 15116.7744906114. The cubic root of 228516871 is about 611.3727669961.

The spelling of 228516871 in words is "two hundred twenty-eight million, five hundred sixteen thousand, eight hundred seventy-one".

Divisors: 1 11 3793 5477 41723 60247 20774261 228516871