Base | Representation |
---|---|
bin | 11101001101100… |
… | …001101000101001 |
3 | 1021011011220002210 |
4 | 131031201220221 |
5 | 2000430204110 |
6 | 120344115333 |
7 | 15100436652 |
oct | 3515415051 |
9 | 1234156083 |
10 | 490084905 |
11 | 231705052 |
12 | 118165b49 |
13 | 7a6c308b |
14 | 49134529 |
15 | 2d05a520 |
hex | 1d361a29 |
490084905 has 16 divisors (see below), whose sum is σ = 798932160. Its totient is φ = 256446528.
The previous prime is 490084873. The next prime is 490084909. The reversal of 490084905 is 509480094.
It is not a de Polignac number, because 490084905 - 25 = 490084873 is a prime.
It is not an unprimeable number, because it can be changed into a prime (490084909) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307435 + ... + 309024.
It is an arithmetic number, because the mean of its divisors is an integer number (49933260).
Almost surely, 2490084905 is an apocalyptic number.
It is an amenable number.
490084905 is a deficient number, since it is larger than the sum of its proper divisors (308847255).
490084905 is a wasteful number, since it uses less digits than its factorization.
490084905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 616520.
The product of its (nonzero) digits is 51840, while the sum is 39.
The square root of 490084905 is about 22137.8613465709. The cubic root of 490084905 is about 788.4190489552.
The spelling of 490084905 in words is "four hundred ninety million, eighty-four thousand, nine hundred five".
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