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54538237 = 134195249
BaseRepresentation
bin1101000000001…
…0111111111101
310210121211101201
43100002333331
5102430210422
65224535501
71231365415
oct320027775
9123554351
1054538237
1128870426
1216321591
13b3b6c60
147359645
154bc4727
hex3402ffd

54538237 has 4 divisors (see below), whose sum is σ = 58733500. Its totient is φ = 50342976.

The previous prime is 54538229. The next prime is 54538247. The reversal of 54538237 is 73283545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20304036 + 34234201 = 4506^2 + 5851^2 .

It is a cyclic number.

It is not a de Polignac number, because 54538237 - 23 = 54538229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54538196 and 54538205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54538217) 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, 2097612 + ... + 2097637.

It is an arithmetic number, because the mean of its divisors is an integer number (14683375).

Almost surely, 254538237 is an apocalyptic number.

It is an amenable number.

54538237 is a deficient number, since it is larger than the sum of its proper divisors (4195263).

54538237 is a wasteful number, since it uses less digits than its factorization.

54538237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195262.

The product of its digits is 100800, while the sum is 37.

The square root of 54538237 is about 7385.0008124576. Note that the first 3 decimals coincide. The cubic root of 54538237 is about 379.2279732023.

The spelling of 54538237 in words is "fifty-four million, five hundred thirty-eight thousand, two hundred thirty-seven".

Divisors: 1 13 4195249 54538237