Base | Representation |
---|---|
bin | 1001000101100011111… |
… | …00001110011000111011 |
3 | 1002211220100122202202101 |
4 | 10202301330032120323 |
5 | 20103413042000443 |
6 | 355233330244231 |
7 | 31362114466246 |
oct | 4426174163073 |
9 | 1084810582671 |
10 | 312223000123 |
11 | 11045a8201a1 |
12 | 50616a26677 |
13 | 2359a241568 |
14 | 1117c60c25d |
15 | 81c57cd84d |
hex | 48b1f0e63b |
312223000123 has 2 divisors, whose sum is σ = 312223000124. Its totient is φ = 312223000122.
The previous prime is 312223000109. The next prime is 312223000151. The reversal of 312223000123 is 321000322213.
It is a weak prime.
It is an emirp because it is prime and its reverse (321000322213) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 312223000123 - 25 = 312223000091 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 312223000123.
It is not a weakly prime, because it can be changed into another prime (312223000153) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156111500061 + 156111500062.
It is an arithmetic number, because the mean of its divisors is an integer number (156111500062).
Almost surely, 2312223000123 is an apocalyptic number.
312223000123 is a deficient number, since it is larger than the sum of its proper divisors (1).
312223000123 is an equidigital number, since it uses as much as digits as its factorization.
312223000123 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 312223000123 its reverse (321000322213), we get a palindrome (633223322336).
The spelling of 312223000123 in words is "three hundred twelve billion, two hundred twenty-three million, one hundred twenty-three", and thus it is an aban number.
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