Base | Representation |
---|---|
bin | 11011001111000… |
… | …01000100100000 |
3 | 120220220010011011 |
4 | 31213201010200 |
5 | 431441303010 |
6 | 34400430304 |
7 | 5442621352 |
oct | 1547410440 |
9 | 526803134 |
10 | 228462880 |
11 | 107a635a8 |
12 | 64618394 |
13 | 38441749 |
14 | 224b10d2 |
15 | 150cca8a |
hex | d9e1120 |
228462880 has 24 divisors (see below), whose sum is σ = 539743932. Its totient is φ = 91385088.
The previous prime is 228462863. The next prime is 228462907. The reversal of 228462880 is 88264822.
It can be written as a sum of positive squares in 2 ways, for example, as 207705744 + 20757136 = 14412^2 + 4556^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713787 + ... + 714106.
Almost surely, 2228462880 is an apocalyptic number.
228462880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
228462880 is an abundant number, since it is smaller than the sum of its proper divisors (311281052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
228462880 is a wasteful number, since it uses less digits than its factorization.
228462880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1427908 (or 1427900 counting only the distinct ones).
The product of its (nonzero) digits is 98304, while the sum is 40.
The square root of 228462880 is about 15114.9885874916. The cubic root of 228462880 is about 611.3246141298.
The spelling of 228462880 in words is "two hundred twenty-eight million, four hundred sixty-two thousand, eight hundred eighty".
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