Base | Representation |
---|---|
bin | 1001010010111001… |
… | …10100100000111111 |
3 | 110212210021222202211 |
4 | 10221130310200333 |
5 | 40210014411122 |
6 | 2143105201251 |
7 | 234444412663 |
oct | 45134644077 |
9 | 13783258684 |
10 | 4990388287 |
11 | 2130a42645 |
12 | b73330227 |
13 | 616b749a1 |
14 | 354abc8a3 |
15 | 1e31a8877 |
hex | 12973483f |
4990388287 has 4 divisors (see below), whose sum is σ = 4990884616. Its totient is φ = 4989891960.
The previous prime is 4990388189. The next prime is 4990388297. The reversal of 4990388287 is 7828830994.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 4990388287 - 27 = 4990388159 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4990388297) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 232764 + ... + 253297.
It is an arithmetic number, because the mean of its divisors is an integer number (1247721154).
Almost surely, 24990388287 is an apocalyptic number.
4990388287 is a deficient number, since it is larger than the sum of its proper divisors (496329).
4990388287 is a wasteful number, since it uses less digits than its factorization.
4990388287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 496328.
The product of its (nonzero) digits is 6967296, while the sum is 58.
The square root of 4990388287 is about 70642.6803497716. The cubic root of 4990388287 is about 1708.8795239405.
The spelling of 4990388287 in words is "four billion, nine hundred ninety million, three hundred eighty-eight thousand, two hundred eighty-seven".
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