Base | Representation |
---|---|
bin | 100110010111… |
… | …0100101110111 |
3 | 1101211212220221 |
4 | 1030232211313 |
5 | 20122120113 |
6 | 1555035211 |
7 | 332651524 |
oct | 114564567 |
9 | 41755827 |
10 | 20113783 |
11 | 10398868 |
12 | 689bb07 |
13 | 4223161 |
14 | 295814b |
15 | 1b7498d |
hex | 132e977 |
20113783 has 2 divisors, whose sum is σ = 20113784. Its totient is φ = 20113782.
The previous prime is 20113747. The next prime is 20113787. The reversal of 20113783 is 38731102.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20113783 - 29 = 20113271 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20113787) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056891 + 10056892.
It is an arithmetic number, because the mean of its divisors is an integer number (10056892).
Almost surely, 220113783 is an apocalyptic number.
20113783 is a deficient number, since it is larger than the sum of its proper divisors (1).
20113783 is an equidigital number, since it uses as much as digits as its factorization.
20113783 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1008, while the sum is 25.
The square root of 20113783 is about 4484.8392390363. The cubic root of 20113783 is about 271.9555461882.
Adding to 20113783 its reverse (38731102), we get a palindrome (58844885).
The spelling of 20113783 in words is "twenty million, one hundred thirteen thousand, seven hundred eighty-three".
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