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53453081 = 1122319207
BaseRepresentation
bin1100101111101…
…0000100011001
310201120200211202
43023322010121
5102140444311
65145403545
71216225613
oct313720431
9121520752
1053453081
112819a100
1215a995b5
13b0c7056
147155db3
154a5ce3b
hex32fa119

53453081 has 12 divisors (see below), whose sum is σ = 61311936. Its totient is φ = 46478520.

The previous prime is 53453041. The next prime is 53453129. The reversal of 53453081 is 18035435.

53453081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53453081 - 26 = 53453017 is a prime.

It is a super-2 number, since 2×534530812 = 5714463736785122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6821 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (5109328).

Almost surely, 253453081 is an apocalyptic number.

It is an amenable number.

53453081 is a deficient number, since it is larger than the sum of its proper divisors (7858855).

53453081 is a wasteful number, since it uses less digits than its factorization.

53453081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19252 (or 19241 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 53453081 is about 7311.1613988477. The cubic root of 53453081 is about 376.6959181432.

The spelling of 53453081 in words is "fifty-three million, four hundred fifty-three thousand, eighty-one".

Divisors: 1 11 23 121 253 2783 19207 211277 441761 2324047 4859371 53453081