Base | Representation |
---|---|
bin | 1101000000011… |
… | …0000111110111 |
3 | 10210122110221120 |
4 | 3100012013313 |
5 | 102431113111 |
6 | 5225115023 |
7 | 1231450623 |
oct | 320060767 |
9 | 123573846 |
10 | 54551031 |
11 | 28879aa7 |
12 | 16328a73 |
13 | b3bca22 |
14 | 7360183 |
15 | 4bc8406 |
hex | 34061f7 |
54551031 has 4 divisors (see below), whose sum is σ = 72734712. Its totient is φ = 36367352.
The previous prime is 54551027. The next prime is 54551053. The reversal of 54551031 is 13015545.
54551031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 54551031 - 22 = 54551027 is a prime.
It is a super-2 number, since 2×545510312 = 5951629966325922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 54550992 and 54551010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54551131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9091836 + ... + 9091841.
It is an arithmetic number, because the mean of its divisors is an integer number (18183678).
Almost surely, 254551031 is an apocalyptic number.
54551031 is a deficient number, since it is larger than the sum of its proper divisors (18183681).
54551031 is a wasteful number, since it uses less digits than its factorization.
54551031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18183680.
The product of its (nonzero) digits is 1500, while the sum is 24.
The square root of 54551031 is about 7385.8669768687. The cubic root of 54551031 is about 379.2576249574.
Adding to 54551031 its reverse (13015545), we get a palindrome (67566576).
The spelling of 54551031 in words is "fifty-four million, five hundred fifty-one thousand, thirty-one".
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