Base | Representation |
---|---|
bin | 1100111000110… |
… | …0001111110111 |
3 | 10202201010011200 |
4 | 3032030033313 |
5 | 102314124311 |
6 | 5210303543 |
7 | 1224301341 |
oct | 316141767 |
9 | 122633150 |
10 | 54051831 |
11 | 28568a39 |
12 | 16127bb3 |
13 | b276742 |
14 | 7270291 |
15 | 4b2a556 |
hex | 338c3f7 |
54051831 has 6 divisors (see below), whose sum is σ = 78074880. Its totient is φ = 36034548.
The previous prime is 54051821. The next prime is 54051859. The reversal of 54051831 is 13815045.
It is not a de Polignac number, because 54051831 - 27 = 54051703 is a prime.
It is a super-2 number, since 2×540518312 = 5843200868905122, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 54051795 and 54051804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54051821) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3002871 + ... + 3002888.
It is an arithmetic number, because the mean of its divisors is an integer number (13012480).
Almost surely, 254051831 is an apocalyptic number.
54051831 is a deficient number, since it is larger than the sum of its proper divisors (24023049).
54051831 is a wasteful number, since it uses less digits than its factorization.
54051831 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6005765 (or 6005762 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 27.
The square root of 54051831 is about 7351.9950353629. The cubic root of 54051831 is about 378.0972077198.
Adding to 54051831 its reverse (13815045), we get a palindrome (67866876).
The spelling of 54051831 in words is "fifty-four million, fifty-one thousand, eight hundred thirty-one".
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