Base | Representation |
---|---|
bin | 1011111100100011001… |
… | …1100101101111000111 |
3 | 201121202000000200002222 |
4 | 2333020303211233013 |
5 | 11330304000230043 |
6 | 234141003122555 |
7 | 20553564605015 |
oct | 2771063455707 |
9 | 647660020088 |
10 | 205232430023 |
11 | 7a0473a1335 |
12 | 33937b1345b |
13 | 1647937b10a |
14 | 9d0cda78b5 |
15 | 55129ddd68 |
hex | 2fc8ce5bc7 |
205232430023 has 8 divisors (see below), whose sum is σ = 208052500128. Its totient is φ = 202412594304.
The previous prime is 205232429981. The next prime is 205232430071. The reversal of 205232430023 is 320034232502.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-205232430023 is a prime.
It is a super-3 number, since 3×2052324300233 (a number of 35 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 205232429974 and 205232430001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (205232460023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418611 + ... + 2502027.
It is an arithmetic number, because the mean of its divisors is an integer number (26006562516).
Almost surely, 2205232430023 is an apocalyptic number.
205232430023 is a deficient number, since it is larger than the sum of its proper divisors (2820070105).
205232430023 is an equidigital number, since it uses as much as digits as its factorization.
205232430023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117193.
The product of its (nonzero) digits is 8640, while the sum is 26.
Adding to 205232430023 its reverse (320034232502), we get a palindrome (525266662525).
The spelling of 205232430023 in words is "two hundred five billion, two hundred thirty-two million, four hundred thirty thousand, twenty-three".
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