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54232540 = 22519114197
BaseRepresentation
bin1100111011100…
…0010111011100
310210001022001121
43032320113130
5102340420130
65214220324
71225653235
oct316702734
9123038047
1054232540
112868178a
12161b46a4
13b30aa7b
1472ba08c
154b63d7a
hex33b85dc

54232540 has 24 divisors (see below), whose sum is σ = 114492672. Its totient is φ = 21577920.

The previous prime is 54232537. The next prime is 54232543. The reversal of 54232540 is 4523245.

54232540 = 4352 + 4362 + ... + 6252.

It is an interprime number because it is at equal distance from previous prime (54232537) and next prime (54232543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54232543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279 + ... + 10918.

It is an arithmetic number, because the mean of its divisors is an integer number (4770528).

Almost surely, 254232540 is an apocalyptic number.

It is an amenable number.

54232540 is an abundant number, since it is smaller than the sum of its proper divisors (60260132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54232540 is a wasteful number, since it uses less digits than its factorization.

54232540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14397 (or 14395 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54232540 is about 7364.2745739143. The cubic root of 54232540 is about 378.5180973543.

Adding to 54232540 its reverse (4523245), we get a palindrome (58755785).

The spelling of 54232540 in words is "fifty-four million, two hundred thirty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1910 3820 14197 28394 56788 70985 141970 283940 2711627 5423254 10846508 13558135 27116270 54232540