Base | Representation |
---|---|
bin | 11011001011111… |
… | …01011101010101 |
3 | 120220010101110122 |
4 | 31211331131111 |
5 | 431340223434 |
6 | 34344001325 |
7 | 5436302000 |
oct | 1545753525 |
9 | 526111418 |
10 | 228054869 |
11 | 107804aa9 |
12 | 64460245 |
13 | 3832ab13 |
14 | 22406537 |
15 | 1504bc2e |
hex | d97d755 |
228054869 has 32 divisors (see below), whose sum is σ = 279072000. Its totient is φ = 186043200.
The previous prime is 228054863. The next prime is 228054877. The reversal of 228054869 is 968450822.
It is not a de Polignac number, because 228054869 - 224 = 211277653 is a prime.
It is a super-2 number, since 2×2280548692 = 104018046549214322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (228054863) 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, 1004534 + ... + 1004760.
It is an arithmetic number, because the mean of its divisors is an integer number (8721000).
Almost surely, 2228054869 is an apocalyptic number.
228054869 is a gapful number since it is divisible by the number (29) formed by its first and last digit.
It is an amenable number.
228054869 is a deficient number, since it is larger than the sum of its proper divisors (51017131).
228054869 is a wasteful number, since it uses less digits than its factorization.
228054869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 378 (or 364 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 44.
The square root of 228054869 is about 15101.4856553917. The cubic root of 228054869 is about 610.9604764950.
The spelling of 228054869 in words is "two hundred twenty-eight million, fifty-four thousand, eight hundred sixty-nine".
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