Base | Representation |
---|---|
bin | 1110010100101000… |
… | …10010001000001101 |
3 | 201211212202000000111 |
4 | 13022110102020031 |
5 | 111221424011221 |
6 | 3311000000021 |
7 | 361355550646 |
oct | 71224221015 |
9 | 21755660014 |
10 | 7689282061 |
11 | 329644346a |
12 | 15a7160011 |
13 | 957061a56 |
14 | 52d3046cd |
15 | 3000c0be1 |
hex | 1ca51220d |
7689282061 has 2 divisors, whose sum is σ = 7689282062. Its totient is φ = 7689282060.
The previous prime is 7689282047. The next prime is 7689282071. The reversal of 7689282061 is 1602829867.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 5397840900 + 2291441161 = 73470^2 + 47869^2 .
It is an emirp because it is prime and its reverse (1602829867) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-7689282061 is a prime.
It is a super-2 number, since 2×76892820612 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 7689281996 and 7689282014.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7689282071) 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, 3844641030 + 3844641031.
It is an arithmetic number, because the mean of its divisors is an integer number (3844641031).
Almost surely, 27689282061 is an apocalyptic number.
It is an amenable number.
7689282061 is a deficient number, since it is larger than the sum of its proper divisors (1).
7689282061 is an equidigital number, since it uses as much as digits as its factorization.
7689282061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 580608, while the sum is 49.
The square root of 7689282061 is about 87688.5514819352. The cubic root of 7689282061 is about 1973.7641842856.
It can be divided in two parts, 768 and 9282061, that added together give a palindrome (9282829).
The spelling of 7689282061 in words is "seven billion, six hundred eighty-nine million, two hundred eighty-two thousand, sixty-one".
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