Base | Representation |
---|---|
bin | 11101001101100… |
… | …001101000010001 |
3 | 1021011011220001220 |
4 | 131031201220101 |
5 | 2000430204011 |
6 | 120344115253 |
7 | 15100436616 |
oct | 3515415021 |
9 | 1234156056 |
10 | 490084881 |
11 | 231705030 |
12 | 118165b29 |
13 | 7a6c3070 |
14 | 4913450d |
15 | 2d05a506 |
hex | 1d361a11 |
490084881 has 16 divisors (see below), whose sum is σ = 767686080. Its totient is φ = 274173120.
The previous prime is 490084873. The next prime is 490084909. The reversal of 490084881 is 188480094.
It is not a de Polignac number, because 490084881 - 23 = 490084873 is a prime.
It is a super-2 number, since 2×4900848812 = 480366381169568322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (490084981) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570766 + ... + 571623.
It is an arithmetic number, because the mean of its divisors is an integer number (47980380).
Almost surely, 2490084881 is an apocalyptic number.
It is an amenable number.
490084881 is a deficient number, since it is larger than the sum of its proper divisors (277601199).
490084881 is a wasteful number, since it uses less digits than its factorization.
490084881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1142416.
The product of its (nonzero) digits is 73728, while the sum is 42.
The square root of 490084881 is about 22137.8608045132. The cubic root of 490084881 is about 788.4190360852.
The spelling of 490084881 in words is "four hundred ninety million, eighty-four thousand, eight hundred eighty-one".
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