Base | Representation |
---|---|
bin | 1100111001111… |
… | …1100101001100 |
3 | 10202212010210121 |
4 | 3032133211030 |
5 | 102324143040 |
6 | 5212114324 |
7 | 1225051246 |
oct | 316374514 |
9 | 122763717 |
10 | 54131020 |
11 | 28612489 |
12 | 161659a4 |
13 | b2a37b8 |
14 | 7291096 |
15 | 4b43c4a |
hex | 339f94c |
54131020 has 48 divisors (see below), whose sum is σ = 116847360. Its totient is φ = 21056256.
The previous prime is 54131017. The next prime is 54131027. The reversal of 54131020 is 2013145.
It is a junction number, because it is equal to n+sod(n) for n = 54130985 and 54131003.
It is not an unprimeable number, because it can be changed into a prime (54131027) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236266 + ... + 236494.
It is an arithmetic number, because the mean of its divisors is an integer number (2434320).
Almost surely, 254131020 is an apocalyptic number.
It is an amenable number.
54131020 is an abundant number, since it is smaller than the sum of its proper divisors (62716340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54131020 is a wasteful number, since it uses less digits than its factorization.
54131020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 514 (or 512 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 54131020 is about 7357.3786092602. The cubic root of 54131020 is about 378.2817622440.
Adding to 54131020 its reverse (2013145), we get a palindrome (56144165).
The spelling of 54131020 in words is "fifty-four million, one hundred thirty-one thousand, twenty".
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