Base | Representation |
---|---|
bin | 11101011111101… |
… | …010011010111101 |
3 | 1021111010110011100 |
4 | 131133222122331 |
5 | 2003134330420 |
6 | 121034043313 |
7 | 15156031500 |
oct | 3537523275 |
9 | 1244113140 |
10 | 494839485 |
11 | 234362258 |
12 | 119879539 |
13 | 7b69923a |
14 | 49a11137 |
15 | 2d699190 |
hex | 1d7ea6bd |
494839485 has 144 divisors (see below), whose sum is σ = 1084539456. Its totient is φ = 207277056.
The previous prime is 494839469. The next prime is 494839487. The reversal of 494839485 is 584938494.
It is not a de Polignac number, because 494839485 - 24 = 494839469 is a prime.
It is a super-2 number, since 2×4948394852 = 489732231830130450, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (494839487) by changing a digit.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1611702 + ... + 1612008.
It is an arithmetic number, because the mean of its divisors is an integer number (7531524).
Almost surely, 2494839485 is an apocalyptic number.
494839485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
It is an amenable number.
494839485 is an abundant number, since it is smaller than the sum of its proper divisors (589699971).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
494839485 is a wasteful number, since it uses less digits than its factorization.
494839485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 392 (or 382 counting only the distinct ones).
The product of its digits is 4976640, while the sum is 54.
The square root of 494839485 is about 22244.9878624377. The cubic root of 494839485 is about 790.9604752224.
Subtracting 494839485 from its reverse (584938494), we obtain a palindrome (90099009).
The spelling of 494839485 in words is "four hundred ninety-four million, eight hundred thirty-nine thousand, four hundred eighty-five".
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