Base | Representation |
---|---|
bin | 11101001110010… |
… | …011001001111110 |
3 | 1021011120012100021 |
4 | 131032103021332 |
5 | 2001003201432 |
6 | 120352322354 |
7 | 15102243220 |
oct | 3516231176 |
9 | 1234505307 |
10 | 490287742 |
11 | 23183348a |
12 | 1182433ba |
13 | 7a7644b9 |
14 | 49188410 |
15 | 2d09a697 |
hex | 1d39327e |
490287742 has 32 divisors (see below), whose sum is σ = 886625280. Its totient is φ = 198637920.
The previous prime is 490287719. The next prime is 490287767. The reversal of 490287742 is 247782094.
It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142203 + ... + 145609.
It is an arithmetic number, because the mean of its divisors is an integer number (27707040).
Almost surely, 2490287742 is an apocalyptic number.
490287742 is a deficient number, since it is larger than the sum of its proper divisors (396337538).
490287742 is a wasteful number, since it uses less digits than its factorization.
490287742 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3976.
The product of its (nonzero) digits is 225792, while the sum is 43.
The square root of 490287742 is about 22142.4420965710. The cubic root of 490287742 is about 788.5278045982.
The spelling of 490287742 in words is "four hundred ninety million, two hundred eighty-seven thousand, seven hundred forty-two".
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