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228886212 = 22329657719
BaseRepresentation
bin11011010010010…
…00011011000100
3120221200121212010
431221020123010
5432043324322
634413454220
75446333512
oct1551103304
9527617763
10228886212
11108222665
12647a1370
133855c339
14225814b2
151516320c
hexda486c4

228886212 has 24 divisors (see below), whose sum is σ = 552484800. Its totient is φ = 73664416.

The previous prime is 228886211. The next prime is 228886247. The reversal of 228886212 is 212688822.

It is not an unprimeable number, because it can be changed into a prime (228886211) 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, 328512 + ... + 329207.

It is an arithmetic number, because the mean of its divisors is an integer number (23020200).

Almost surely, 2228886212 is an apocalyptic number.

It is an amenable number.

228886212 is an abundant number, since it is smaller than the sum of its proper divisors (323598588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228886212 is a wasteful number, since it uses less digits than its factorization.

228886212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657755 (or 657753 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 228886212 is about 15128.9858219247. The cubic root of 228886212 is about 611.7019673225.

The spelling of 228886212 in words is "two hundred twenty-eight million, eight hundred eighty-six thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 657719 1315438 1973157 2630876 3946314 7892628 19073851 38147702 57221553 76295404 114443106 228886212