Base | Representation |
---|---|
bin | 11101010001000… |
… | …000100100011010 |
3 | 1021012220021200200 |
4 | 131101000210122 |
5 | 2001143414132 |
6 | 120415443030 |
7 | 15111262113 |
oct | 3521004432 |
9 | 1235807620 |
10 | 490998042 |
11 | 232179107 |
12 | 118526476 |
13 | 7a9528b2 |
14 | 492d120a |
15 | 2d18ad7c |
hex | 1d44091a |
490998042 has 48 divisors (see below), whose sum is σ = 1110426408. Its totient is φ = 156648960.
The previous prime is 490998023. The next prime is 490998077. The reversal of 490998042 is 240899094.
It can be written as a sum of positive squares in 4 ways, for example, as 472671081 + 18326961 = 21741^2 + 4281^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32838 + ... + 45390.
Almost surely, 2490998042 is an apocalyptic number.
490998042 is an abundant number, since it is smaller than the sum of its proper divisors (619428366).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
490998042 is a wasteful number, since it uses less digits than its factorization.
490998042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12655 (or 12652 counting only the distinct ones).
The product of its (nonzero) digits is 186624, while the sum is 45.
The square root of 490998042 is about 22158.4756244648. The cubic root of 490998042 is about 788.9084117352.
The spelling of 490998042 in words is "four hundred ninety million, nine hundred ninety-eight thousand, forty-two".
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