Base | Representation |
---|---|
bin | 11101000100111111… |
… | …100111111000111111 |
3 | 2222120221021012001202 |
4 | 131010333213320333 |
5 | 1002420402101343 |
6 | 22202054130115 |
7 | 2153501113232 |
oct | 350477477077 |
9 | 88527235052 |
10 | 31222300223 |
11 | 122721a1304 |
12 | 607435093b |
13 | 2c3769697a |
14 | 1722901419 |
15 | c2b0bbdb8 |
hex | 744fe7e3f |
31222300223 has 2 divisors, whose sum is σ = 31222300224. Its totient is φ = 31222300222.
The previous prime is 31222300217. The next prime is 31222300229. The reversal of 31222300223 is 32200322213.
It is a balanced prime because it is at equal distance from previous prime (31222300217) and next prime (31222300229).
It is an emirp because it is prime and its reverse (32200322213) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 31222300223 - 220 = 31221251647 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31222300195 and 31222300204.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31222300229) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611150111 + 15611150112.
It is an arithmetic number, because the mean of its divisors is an integer number (15611150112).
Almost surely, 231222300223 is an apocalyptic number.
31222300223 is a deficient number, since it is larger than the sum of its proper divisors (1).
31222300223 is an equidigital number, since it uses as much as digits as its factorization.
31222300223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 20.
Adding to 31222300223 its reverse (32200322213), we get a palindrome (63422622436).
The spelling of 31222300223 in words is "thirty-one billion, two hundred twenty-two million, three hundred thousand, two hundred twenty-three".
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