Base | Representation |
---|---|
bin | 1100111011110… |
… | …1011010101111 |
3 | 10210002100102221 |
4 | 3032331122233 |
5 | 102342100411 |
6 | 5214500211 |
7 | 1226100454 |
oct | 316753257 |
9 | 123070387 |
10 | 54253231 |
11 | 2869628a |
12 | 16204667 |
13 | b317306 |
14 | 72c382b |
15 | 4b6a071 |
hex | 33bd6af |
54253231 has 4 divisors (see below), whose sum is σ = 54306000. Its totient is φ = 54200464.
The previous prime is 54253201. The next prime is 54253247. The reversal of 54253231 is 13235245.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13235245 = 5 ⋅2647049.
It is a cyclic number.
It is not a de Polignac number, because 54253231 - 29 = 54252719 is a prime.
It is a super-2 number, since 2×542532312 = 5886826147878722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 54253196 and 54253205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54253201) 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, 24811 + ... + 26908.
It is an arithmetic number, because the mean of its divisors is an integer number (13576500).
Almost surely, 254253231 is an apocalyptic number.
54253231 is a deficient number, since it is larger than the sum of its proper divisors (52769).
54253231 is a wasteful number, since it uses less digits than its factorization.
54253231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52768.
The product of its digits is 3600, while the sum is 25.
The square root of 54253231 is about 7365.6792626342. The cubic root of 54253231 is about 378.5662291103.
Adding to 54253231 its reverse (13235245), we get a palindrome (67488476).
The spelling of 54253231 in words is "fifty-four million, two hundred fifty-three thousand, two hundred thirty-one".
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