Base | Representation |
---|---|
bin | 11100100010000101… |
… | …001010000110000101 |
3 | 2221002010001220201221 |
4 | 130202011022012011 |
5 | 1000220424022420 |
6 | 22024011320341 |
7 | 2133126236224 |
oct | 344205120605 |
9 | 87063056657 |
10 | 30636548485 |
11 | 11aa1595364 |
12 | 5b301500b1 |
13 | 2b732194ca |
14 | 16a8bc6cbb |
15 | be4965caa |
hex | 72214a185 |
30636548485 has 4 divisors (see below), whose sum is σ = 36763858188. Its totient is φ = 24509238784.
The previous prime is 30636548483. The next prime is 30636548491. The reversal of 30636548485 is 58484563603.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58484563603 = 2917 ⋅20049559.
It can be written as a sum of positive squares in 2 ways, for example, as 10544619969 + 20091928516 = 102687^2 + 141746^2 .
It is a cyclic number.
It is not a de Polignac number, because 30636548485 - 21 = 30636548483 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30636548483) 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 in 3 ways as a sum of consecutive naturals, for example, 3063654844 + ... + 3063654853.
It is an arithmetic number, because the mean of its divisors is an integer number (9190964547).
Almost surely, 230636548485 is an apocalyptic number.
It is an amenable number.
30636548485 is a deficient number, since it is larger than the sum of its proper divisors (6127309703).
30636548485 is an equidigital number, since it uses as much as digits as its factorization.
30636548485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6127309702.
The product of its (nonzero) digits is 8294400, while the sum is 52.
It can be divided in two parts, 30636 and 548485, that added together give a square (579121 = 7612).
The spelling of 30636548485 in words is "thirty billion, six hundred thirty-six million, five hundred forty-eight thousand, four hundred eighty-five".
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