Base | Representation |
---|---|
bin | 1001010101000100111100… |
… | …11100010010001010010001 |
3 | 2200122020220000221000112010 |
4 | 10222202132130102022101 |
5 | 10142111041014121431 |
6 | 111344353232453133 |
7 | 4215122165634351 |
oct | 452423634221221 |
9 | 80566800830463 |
10 | 20515422020241 |
11 | 659a5a5992605 |
12 | 23740393aa1a9 |
13 | b5a79952bc75 |
14 | 50cd4775cb61 |
15 | 2589be891846 |
hex | 12a89e712291 |
20515422020241 has 8 divisors (see below), whose sum is σ = 27537479222400. Its totient is φ = 13585156415792.
The previous prime is 20515422020231. The next prime is 20515422020257. The reversal of 20515422020241 is 14202022451502.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20515422020241 - 27 = 20515422020113 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20515422020199 and 20515422020208.
It is not an unprimeable number, because it can be changed into a prime (20515422020231) 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 in 7 ways as a sum of consecutive naturals, for example, 22947898905 + ... + 22947899798.
It is an arithmetic number, because the mean of its divisors is an integer number (3442184902800).
Almost surely, 220515422020241 is an apocalyptic number.
It is an amenable number.
20515422020241 is a deficient number, since it is larger than the sum of its proper divisors (7022057202159).
20515422020241 is a wasteful number, since it uses less digits than its factorization.
20515422020241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45895798855.
The product of its (nonzero) digits is 12800, while the sum is 30.
Adding to 20515422020241 its reverse (14202022451502), we get a palindrome (34717444471743).
The spelling of 20515422020241 in words is "twenty trillion, five hundred fifteen billion, four hundred twenty-two million, twenty thousand, two hundred forty-one".
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