Base | Representation |
---|---|
bin | 11011001011101… |
… | …00000101100101 |
3 | 120220001102211000 |
4 | 31211310011211 |
5 | 431333011420 |
6 | 34343103513 |
7 | 5436052044 |
oct | 1545640545 |
9 | 526042730 |
10 | 228016485 |
11 | 107789184 |
12 | 64441b99 |
13 | 383164c8 |
14 | 223d655b |
15 | 15040690 |
hex | d974165 |
228016485 has 32 divisors (see below), whose sum is σ = 408977280. Its totient is φ = 120524544.
The previous prime is 228016483. The next prime is 228016507. The reversal of 228016485 is 584610822.
228016485 is a `hidden beast` number, since 2 + 2 + 8 + 0 + 1 + 648 + 5 = 666.
228016485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 228016485 - 21 = 228016483 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (228016483) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7782 + ... + 22728.
It is an arithmetic number, because the mean of its divisors is an integer number (12780540).
Almost surely, 2228016485 is an apocalyptic number.
It is an amenable number.
228016485 is a deficient number, since it is larger than the sum of its proper divisors (180960795).
228016485 is a wasteful number, since it uses less digits than its factorization.
228016485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15074 (or 15068 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The square root of 228016485 is about 15100.2147335725. The cubic root of 228016485 is about 610.9261975765.
The spelling of 228016485 in words is "two hundred twenty-eight million, sixteen thousand, four hundred eighty-five".
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