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54245231 = 438315199
BaseRepresentation
bin1100111011101…
…1011101101111
310210001221110122
43032323131233
5102341321411
65214355155
71226035235
oct316733557
9123057418
1054245231
1128690277
12161bbabb
13b313791
1472c0955
154b679db
hex33bb76f

54245231 has 8 divisors (see below), whose sum is σ = 56179200. Its totient is φ = 52341912.

The previous prime is 54245221. The next prime is 54245237. The reversal of 54245231 is 13254245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54245231 - 218 = 53983087 is a prime.

It is a super-2 number, since 2×542452312 = 5885090172486722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54245231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54245237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4031 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (7022400).

Almost surely, 254245231 is an apocalyptic number.

54245231 is a deficient number, since it is larger than the sum of its proper divisors (1933969).

54245231 is a wasteful number, since it uses less digits than its factorization.

54245231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15325.

The product of its digits is 4800, while the sum is 26.

The square root of 54245231 is about 7365.1361833981. The cubic root of 54245231 is about 378.5476208256.

Adding to 54245231 its reverse (13254245), we get a palindrome (67499476).

The spelling of 54245231 in words is "fifty-four million, two hundred forty-five thousand, two hundred thirty-one".

Divisors: 1 43 83 3569 15199 653557 1261517 54245231