Base | Representation |
---|---|
bin | 100111101000011011… |
… | …100110001110010111 |
3 | 11001211200100002121001 |
4 | 213220123212032113 |
5 | 1144122342113411 |
6 | 31314341204131 |
7 | 3034351123066 |
oct | 475033461627 |
9 | 131750302531 |
10 | 42554254231 |
11 | 17057849055 |
12 | 82b7400647 |
13 | 40222c95b8 |
14 | 20b99021dd |
15 | 1190d7cdc1 |
hex | 9e86e6397 |
42554254231 has 2 divisors, whose sum is σ = 42554254232. Its totient is φ = 42554254230.
The previous prime is 42554254219. The next prime is 42554254289. The reversal of 42554254231 is 13245245524.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 42554254231 - 211 = 42554252183 is a prime.
It is a super-2 number, since 2×425542542312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (42554954231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277127115 + 21277127116.
It is an arithmetic number, because the mean of its divisors is an integer number (21277127116).
Almost surely, 242554254231 is an apocalyptic number.
42554254231 is a deficient number, since it is larger than the sum of its proper divisors (1).
42554254231 is an equidigital number, since it uses as much as digits as its factorization.
42554254231 is an evil number, because the sum of its binary digits is even.
The product of its digits is 192000, while the sum is 37.
Adding to 42554254231 its reverse (13245245524), we get a palindrome (55799499755).
The spelling of 42554254231 in words is "forty-two billion, five hundred fifty-four million, two hundred fifty-four thousand, two hundred thirty-one".
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