Base | Representation |
---|---|
bin | 110100100110110101… |
… | …110001101010000001 |
3 | 12101210121202120122201 |
4 | 310212311301222001 |
5 | 1411140432043311 |
6 | 41541023233201 |
7 | 4036531554364 |
oct | 644665615201 |
9 | 171717676581 |
10 | 56486206081 |
11 | 21a56a99748 |
12 | ab45148801 |
13 | 54327a11a6 |
14 | 2a3bd440db |
15 | 170901d9c1 |
hex | d26d71a81 |
56486206081 has 2 divisors, whose sum is σ = 56486206082. Its totient is φ = 56486206080.
The previous prime is 56486206079. The next prime is 56486206121. The reversal of 56486206081 is 18060268465.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 30203311681 + 26282894400 = 173791^2 + 162120^2 .
It is a cyclic number.
It is not a de Polignac number, because 56486206081 - 21 = 56486206079 is a prime.
It is a super-2 number, since 2×564862060812 (a number of 22 digits) contains 22 as substring.
Together with 56486206079, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (56486206181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28243103040 + 28243103041.
It is an arithmetic number, because the mean of its divisors is an integer number (28243103041).
Almost surely, 256486206081 is an apocalyptic number.
It is an amenable number.
56486206081 is a deficient number, since it is larger than the sum of its proper divisors (1).
56486206081 is an equidigital number, since it uses as much as digits as its factorization.
56486206081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 552960, while the sum is 46.
The spelling of 56486206081 in words is "fifty-six billion, four hundred eighty-six million, two hundred six thousand, eighty-one".
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