Base | Representation |
---|---|
bin | 1100111000010… |
… | …0000001010101 |
3 | 10202122101221121 |
4 | 3032010001111 |
5 | 102312040013 |
6 | 5205443541 |
7 | 1224101161 |
oct | 316040125 |
9 | 122571847 |
10 | 54018133 |
11 | 28545694 |
12 | 161105b1 |
13 | b2642c0 |
14 | 7261ca1 |
15 | 4b2058d |
hex | 3384055 |
54018133 has 8 divisors (see below), whose sum is σ = 58750776. Its totient is φ = 49368000.
The previous prime is 54018131. The next prime is 54018137. The reversal of 54018133 is 33181045.
It can be written as a sum of positive squares in 4 ways, for example, as 13593969 + 40424164 = 3687^2 + 6358^2 .
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 54018133 - 21 = 54018131 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 54018098 and 54018107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54018131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19258 + ... + 21883.
It is an arithmetic number, because the mean of its divisors is an integer number (7343847).
Almost surely, 254018133 is an apocalyptic number.
It is an amenable number.
54018133 is a deficient number, since it is larger than the sum of its proper divisors (4732643).
54018133 is a wasteful number, since it uses less digits than its factorization.
54018133 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41255.
The product of its (nonzero) digits is 1440, while the sum is 25.
The square root of 54018133 is about 7349.7029191662. The cubic root of 54018133 is about 378.0186179160.
Adding to 54018133 its reverse (33181045), we get a palindrome (87199178).
The spelling of 54018133 in words is "fifty-four million, eighteen thousand, one hundred thirty-three".
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