Base | Representation |
---|---|
bin | 10011010011001011011… |
… | …00011110001001010101 |
3 | 2100101122202012020200202 |
4 | 21221211230132021111 |
5 | 41331043031321323 |
6 | 1224345505150245 |
7 | 65624002343042 |
oct | 11514554361125 |
9 | 2311582166622 |
10 | 663131120213 |
11 | 236261258611 |
12 | a862932b385 |
13 | 4a6c0cba543 |
14 | 2414a9121c9 |
15 | 123b2414d28 |
hex | 9a65b1e255 |
663131120213 has 8 divisors (see below), whose sum is σ = 666776904000. Its totient is φ = 659488471488.
The previous prime is 663131120191. The next prime is 663131120261. The reversal of 663131120213 is 312021131366.
663131120213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 663131120213 - 28 = 663131119957 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 (663131120513) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358931 + ... + 1206272.
It is an arithmetic number, because the mean of its divisors is an integer number (83347113000).
Almost surely, 2663131120213 is an apocalyptic number.
It is an amenable number.
663131120213 is a deficient number, since it is larger than the sum of its proper divisors (3645783787).
663131120213 is a wasteful number, since it uses less digits than its factorization.
663131120213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1567531.
The product of its (nonzero) digits is 3888, while the sum is 29.
Adding to 663131120213 its reverse (312021131366), we get a palindrome (975152251579).
The spelling of 663131120213 in words is "six hundred sixty-three billion, one hundred thirty-one million, one hundred twenty thousand, two hundred thirteen".
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