Base | Representation |
---|---|
bin | 11101001110000… |
… | …111101100001100 |
3 | 1021011110210220221 |
4 | 131032013230030 |
5 | 2001000201110 |
6 | 120351321124 |
7 | 15101656261 |
oct | 3516075414 |
9 | 1234423827 |
10 | 490240780 |
11 | 231801177 |
12 | 1182201a4 |
13 | 7a749003 |
14 | 49175268 |
15 | 2d08b7da |
hex | 1d387b0c |
490240780 has 12 divisors (see below), whose sum is σ = 1029505680. Its totient is φ = 196096304.
The previous prime is 490240739. The next prime is 490240783. The reversal of 490240780 is 87042094.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (490240783) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12256000 + ... + 12256039.
It is an arithmetic number, because the mean of its divisors is an integer number (85792140).
Almost surely, 2490240780 is an apocalyptic number.
It is an amenable number.
490240780 is an abundant number, since it is smaller than the sum of its proper divisors (539264900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
490240780 is a wasteful number, since it uses less digits than its factorization.
490240780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24512048 (or 24512046 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 34.
The square root of 490240780 is about 22141.3816190408. The cubic root of 490240780 is about 788.5026275291.
The spelling of 490240780 in words is "four hundred ninety million, two hundred forty thousand, seven hundred eighty".
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