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54242641 = 80967049
BaseRepresentation
bin1100111011101…
…0110101010001
310210001210220201
43032322311101
5102341231031
65214335201
71226024545
oct316726521
9123053821
1054242641
1128689332
12161ba501
13b31254b
1472bda25
154b66d61
hex33bad51

54242641 has 4 divisors (see below), whose sum is σ = 54310500. Its totient is φ = 54174784.

The previous prime is 54242621. The next prime is 54242659. The reversal of 54242641 is 14624245.

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 35058241 + 19184400 = 5921^2 + 4380^2 .

It is a cyclic number.

It is not a de Polignac number, because 54242641 - 25 = 54242609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54242611) 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, 32716 + ... + 34333.

It is an arithmetic number, because the mean of its divisors is an integer number (13577625).

Almost surely, 254242641 is an apocalyptic number.

It is an amenable number.

54242641 is a deficient number, since it is larger than the sum of its proper divisors (67859).

54242641 is an equidigital number, since it uses as much as digits as its factorization.

54242641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67858.

The product of its digits is 7680, while the sum is 28.

The square root of 54242641 is about 7364.9603529143. The cubic root of 54242641 is about 378.5415960014.

Adding to 54242641 its reverse (14624245), we get a palindrome (68866886).

The spelling of 54242641 in words is "fifty-four million, two hundred forty-two thousand, six hundred forty-one".

Divisors: 1 809 67049 54242641