Base | Representation |
---|---|
bin | 1100111010001… |
… | …1000000011110 |
3 | 10202212212001101 |
4 | 3032203000132 |
5 | 102330120204 |
6 | 5212303314 |
7 | 1225140205 |
oct | 316430036 |
9 | 122785041 |
10 | 54145054 |
11 | 28621a87 |
12 | 16171b3a |
13 | b2a9cc2 |
14 | 729623c |
15 | 4b47ea4 |
hex | 33a301e |
54145054 has 4 divisors (see below), whose sum is σ = 81217584. Its totient is φ = 27072526.
The previous prime is 54145043. The next prime is 54145057. The reversal of 54145054 is 45054145.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45054145 = 5 ⋅9010829.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54145057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13536262 + ... + 13536265.
It is an arithmetic number, because the mean of its divisors is an integer number (20304396).
Almost surely, 254145054 is an apocalyptic number.
54145054 is a deficient number, since it is larger than the sum of its proper divisors (27072530).
54145054 is a wasteful number, since it uses less digits than its factorization.
54145054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27072529.
The product of its (nonzero) digits is 8000, while the sum is 28.
The square root of 54145054 is about 7358.3322838806. The cubic root of 54145054 is about 378.3144505099.
Adding to 54145054 its reverse (45054145), we get a palindrome (99199199).
Subtracting from 54145054 its reverse (45054145), we obtain a palindrome (9090909).
The spelling of 54145054 in words is "fifty-four million, one hundred forty-five thousand, fifty-four".
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