Base | Representation |
---|---|
bin | 1101000101100… |
… | …0000111100001 |
3 | 10211021112122110 |
4 | 3101120013201 |
5 | 103022340011 |
6 | 5240225533 |
7 | 1234350030 |
oct | 321300741 |
9 | 124245573 |
10 | 54886881 |
11 | 28a89365 |
12 | 1646b2a9 |
13 | b4a985a |
14 | 740a717 |
15 | 4c42ba6 |
hex | 34581e1 |
54886881 has 16 divisors (see below), whose sum is σ = 83888000. Its totient is φ = 31269888.
The previous prime is 54886861. The next prime is 54886889. The reversal of 54886881 is 18868845.
It is not a de Polignac number, because 54886881 - 25 = 54886849 is a prime.
It is a super-2 number, since 2×548868812 = 6025139411816322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 54886881.
It is not an unprimeable number, because it can be changed into a prime (54886889) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 3585 + ... + 11073.
It is an arithmetic number, because the mean of its divisors is an integer number (5243000).
Almost surely, 254886881 is an apocalyptic number.
It is an amenable number.
54886881 is a deficient number, since it is larger than the sum of its proper divisors (29001119).
54886881 is a wasteful number, since it uses less digits than its factorization.
54886881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7848.
The product of its digits is 491520, while the sum is 48.
The square root of 54886881 is about 7408.5680802703. The cubic root of 54886881 is about 380.0343482340.
The spelling of 54886881 in words is "fifty-four million, eight hundred eighty-six thousand, eight hundred eighty-one".
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