Base | Representation |
---|---|
bin | 11011001111111… |
… | …00001010111000 |
3 | 120221002202102021 |
4 | 31213330022320 |
5 | 432003331010 |
6 | 34403044224 |
7 | 5443563103 |
oct | 1547741270 |
9 | 527082367 |
10 | 228573880 |
11 | 108029a37 |
12 | 64670674 |
13 | 38480122 |
14 | 224dd73a |
15 | 151008da |
hex | d9fc2b8 |
228573880 has 16 divisors (see below), whose sum is σ = 514291320. Its totient is φ = 91429536.
The previous prime is 228573869. The next prime is 228573883. The reversal of 228573880 is 88375822.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (228573883) 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, 2857134 + ... + 2857213.
Almost surely, 2228573880 is an apocalyptic number.
228573880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
228573880 is an abundant number, since it is smaller than the sum of its proper divisors (285717440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
228573880 is a wasteful number, since it uses less digits than its factorization.
228573880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5714358 (or 5714354 counting only the distinct ones).
The product of its (nonzero) digits is 215040, while the sum is 43.
The square root of 228573880 is about 15118.6599935312. The cubic root of 228573880 is about 611.4236032895.
The spelling of 228573880 in words is "two hundred twenty-eight million, five hundred seventy-three thousand, eight hundred eighty".
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