Base | Representation |
---|---|
bin | 1010101100100110… |
… | …00000010010010101 |
3 | 112211020001221120211 |
4 | 11112103000102111 |
5 | 43230123233111 |
6 | 2345503525421 |
7 | 262211623231 |
oct | 52623002225 |
9 | 15736057524 |
10 | 5742789781 |
11 | 2487722a63 |
12 | 11432b9871 |
13 | 706a00581 |
14 | 3c69b75c1 |
15 | 23927c521 |
hex | 1564c0495 |
5742789781 has 2 divisors, whose sum is σ = 5742789782. Its totient is φ = 5742789780.
The previous prime is 5742789733. The next prime is 5742789791. The reversal of 5742789781 is 1879872475.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 4638291025 + 1104498756 = 68105^2 + 33234^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-5742789781 is a prime.
It is a super-2 number, since 2×57427897812 = 65959268937516055922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5742789791) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2871394890 + 2871394891.
It is an arithmetic number, because the mean of its divisors is an integer number (2871394891).
Almost surely, 25742789781 is an apocalyptic number.
It is an amenable number.
5742789781 is a deficient number, since it is larger than the sum of its proper divisors (1).
5742789781 is an equidigital number, since it uses as much as digits as its factorization.
5742789781 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 7902720, while the sum is 58.
The square root of 5742789781 is about 75781.1967509091. The cubic root of 5742789781 is about 1790.7747944705.
The spelling of 5742789781 in words is "five billion, seven hundred forty-two million, seven hundred eighty-nine thousand, seven hundred eighty-one".
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