Base | Representation |
---|---|
bin | 110010011001111111… |
… | …010010000000010101 |
3 | 12011200221011212211020 |
4 | 302121333102000111 |
5 | 1341321004013141 |
6 | 40510330031353 |
7 | 3624135563562 |
oct | 623177220025 |
9 | 164627155736 |
10 | 54123110421 |
11 | 20a540a2a26 |
12 | a5a5878559 |
13 | 5147037033 |
14 | 289616d869 |
15 | 161b837266 |
hex | c99fd2015 |
54123110421 has 16 divisors (see below), whose sum is σ = 75986101440. Its totient is φ = 34172288640.
The previous prime is 54123110417. The next prime is 54123110429. The reversal of 54123110421 is 12401132145.
It is not a de Polignac number, because 54123110421 - 22 = 54123110417 is a prime.
It is a super-2 number, since 2×541231104212 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 54123110391 and 54123110400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54123110429) 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 in 15 ways as a sum of consecutive naturals, for example, 36201 + ... + 330993.
It is an arithmetic number, because the mean of its divisors is an integer number (4749131340).
Almost surely, 254123110421 is an apocalyptic number.
It is an amenable number.
54123110421 is a deficient number, since it is larger than the sum of its proper divisors (21862991019).
54123110421 is a wasteful number, since it uses less digits than its factorization.
54123110421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 298036.
The product of its (nonzero) digits is 960, while the sum is 24.
Adding to 54123110421 its reverse (12401132145), we get a palindrome (66524242566).
The spelling of 54123110421 in words is "fifty-four billion, one hundred twenty-three million, one hundred ten thousand, four hundred twenty-one".
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