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53440301 = 291842769
BaseRepresentation
bin1100101111011…
…0111100101101
310201120001022102
43023312330231
5102140042201
65145224445
71216143425
oct313667455
9121501272
1053440301
1128190542
1215a92125
13b0c12a5
147151485
154a5926b
hex32f6f2d

53440301 has 4 divisors (see below), whose sum is σ = 55283100. Its totient is φ = 51597504.

The previous prime is 53440267. The next prime is 53440337. The reversal of 53440301 is 10304435.

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 17859076 + 35581225 = 4226^2 + 5965^2 .

It is a cyclic number.

It is not a de Polignac number, because 53440301 - 26 = 53440237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53440391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921356 + ... + 921413.

It is an arithmetic number, because the mean of its divisors is an integer number (13820775).

Almost surely, 253440301 is an apocalyptic number.

It is an amenable number.

53440301 is a deficient number, since it is larger than the sum of its proper divisors (1842799).

53440301 is a wasteful number, since it uses less digits than its factorization.

53440301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842798.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53440301 is about 7310.2873404539. The cubic root of 53440301 is about 376.6658945695.

Adding to 53440301 its reverse (10304435), we get a palindrome (63744736).

The spelling of 53440301 in words is "fifty-three million, four hundred forty thousand, three hundred one".

Divisors: 1 29 1842769 53440301