Base | Representation |
---|---|
bin | 100111100010011101… |
… | …010111001010100101 |
3 | 11001120200210101002101 |
4 | 213202131113022211 |
5 | 1143421214203131 |
6 | 31300401412101 |
7 | 3032023333564 |
oct | 474235271245 |
9 | 131520711071 |
10 | 42454053541 |
11 | 1700622a869 |
12 | 828993a031 |
13 | 4007615653 |
14 | 20aa49bbdb |
15 | 1187188c61 |
hex | 9e27572a5 |
42454053541 has 2 divisors, whose sum is σ = 42454053542. Its totient is φ = 42454053540.
The previous prime is 42454053449. The next prime is 42454053563. The reversal of 42454053541 is 14535045424.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23450328225 + 19003725316 = 153135^2 + 137854^2 .
It is a cyclic number.
It is not a de Polignac number, because 42454053541 - 231 = 40306569893 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 42454053541.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (42454053571) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21227026770 + 21227026771.
It is an arithmetic number, because the mean of its divisors is an integer number (21227026771).
Almost surely, 242454053541 is an apocalyptic number.
It is an amenable number.
42454053541 is a deficient number, since it is larger than the sum of its proper divisors (1).
42454053541 is an equidigital number, since it uses as much as digits as its factorization.
42454053541 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 192000, while the sum is 37.
Adding to 42454053541 its reverse (14535045424), we get a palindrome (56989098965).
The spelling of 42454053541 in words is "forty-two billion, four hundred fifty-four million, fifty-three thousand, five hundred forty-one".
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