Base | Representation |
---|---|
bin | 11100101010111… |
… | …110101100010001 |
3 | 1020112010210120111 |
4 | 130222332230101 |
5 | 1441120411011 |
6 | 115422041321 |
7 | 14630451364 |
oct | 3452765421 |
9 | 1215123514 |
10 | 481028881 |
11 | 22758a133 |
12 | 115119241 |
13 | 78872098 |
14 | 47c580db |
15 | 2c36c121 |
hex | 1cabeb11 |
481028881 has 8 divisors (see below), whose sum is σ = 486046440. Its totient is φ = 476022528.
The previous prime is 481028827. The next prime is 481028903. The reversal of 481028881 is 188820184.
It can be written as a sum of positive squares in 4 ways, for example, as 71978256 + 409050625 = 8484^2 + 20225^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 481028881 - 219 = 480504593 is a prime.
It is a super-3 number, since 3×4810288813 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (481028081) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104235 + ... + 108751.
It is an arithmetic number, because the mean of its divisors is an integer number (60755805).
Almost surely, 2481028881 is an apocalyptic number.
It is an amenable number.
481028881 is a deficient number, since it is larger than the sum of its proper divisors (5017559).
481028881 is a wasteful number, since it uses less digits than its factorization.
481028881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5603.
The product of its (nonzero) digits is 32768, while the sum is 40.
The square root of 481028881 is about 21932.3706197027. The cubic root of 481028881 is about 783.5325641220.
The spelling of 481028881 in words is "four hundred eighty-one million, twenty-eight thousand, eight hundred eighty-one".
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