Base | Representation |
---|---|
bin | 11011001011101… |
… | …10010001101111 |
3 | 120220001220010020 |
4 | 31211312101233 |
5 | 431333303310 |
6 | 34343213223 |
7 | 5436120150 |
oct | 1545662157 |
9 | 526056106 |
10 | 228025455 |
11 | 107794999 |
12 | 64447213 |
13 | 3831a608 |
14 | 223d9927 |
15 | 15043170 |
hex | d97646f |
228025455 has 32 divisors (see below), whose sum is σ = 423197184. Its totient is φ = 102681216.
The previous prime is 228025439. The next prime is 228025459. The reversal of 228025455 is 554520822.
It is a happy number.
It is not a de Polignac number, because 228025455 - 24 = 228025439 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (228025459) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9172 + ... + 23241.
It is an arithmetic number, because the mean of its divisors is an integer number (13224912).
Almost surely, 2228025455 is an apocalyptic number.
228025455 is a deficient number, since it is larger than the sum of its proper divisors (195171729).
228025455 is a wasteful number, since it uses less digits than its factorization.
228025455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32495.
The product of its (nonzero) digits is 32000, while the sum is 33.
The square root of 228025455 is about 15100.5117462952. The cubic root of 228025455 is about 610.9342085999.
The spelling of 228025455 in words is "two hundred twenty-eight million, twenty-five thousand, four hundred fifty-five".
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