Base | Representation |
---|---|
bin | 1100111010001… |
… | …0111110010001 |
3 | 10202212211212011 |
4 | 3032202332101 |
5 | 102330114123 |
6 | 5212302521 |
7 | 1225136614 |
oct | 316427621 |
9 | 122784764 |
10 | 54144913 |
11 | 28621969 |
12 | 16171a41 |
13 | b2a9c14 |
14 | 729617b |
15 | 4b47e0d |
hex | 33a2f91 |
54144913 has 4 divisors (see below), whose sum is σ = 54340660. Its totient is φ = 53949168.
The previous prime is 54144901. The next prime is 54144917. The reversal of 54144913 is 31944145.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31944145 = 5 ⋅6388829.
It can be written as a sum of positive squares in 2 ways, for example, as 4695889 + 49449024 = 2167^2 + 7032^2 .
It is a cyclic number.
It is not a de Polignac number, because 54144913 - 29 = 54144401 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (54144917) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97458 + ... + 98011.
It is an arithmetic number, because the mean of its divisors is an integer number (13585165).
Almost surely, 254144913 is an apocalyptic number.
It is an amenable number.
54144913 is a deficient number, since it is larger than the sum of its proper divisors (195747).
54144913 is a wasteful number, since it uses less digits than its factorization.
54144913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 195746.
The product of its digits is 8640, while the sum is 31.
The square root of 54144913 is about 7358.3227028991. The cubic root of 54144913 is about 378.3141221181.
It can be divided in two parts, 541 and 44913, that added together give a palindrome (45454).
The spelling of 54144913 in words is "fifty-four million, one hundred forty-four thousand, nine hundred thirteen".
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