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53424351 = 32291071913
BaseRepresentation
bin1100101111001…
…1000011011111
310201112020102200
43023303003133
5102134034401
65145022543
71216046061
oct313630337
9121466380
1053424351
112817a562
1215a84a53
13b0b6c56
147149731
154a54686
hex32f30df

53424351 has 24 divisors (see below), whose sum is σ = 80617680. Its totient is φ = 34048896.

The previous prime is 53424347. The next prime is 53424359. The reversal of 53424351 is 15342435.

It is not a de Polignac number, because 53424351 - 22 = 53424347 is a prime.

It is a super-2 number, since 2×534243512 = 5708322559542402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53424359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26971 + ... + 28883.

It is an arithmetic number, because the mean of its divisors is an integer number (3359070).

Almost surely, 253424351 is an apocalyptic number.

53424351 is a deficient number, since it is larger than the sum of its proper divisors (27193329).

53424351 is a wasteful number, since it uses less digits than its factorization.

53424351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2052 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 53424351 is about 7309.1963306509. The cubic root of 53424351 is about 376.6284171182.

Adding to 53424351 its reverse (15342435), we get a palindrome (68766786).

The spelling of 53424351 in words is "fifty-three million, four hundred twenty-four thousand, three hundred fifty-one".

Divisors: 1 3 9 29 87 107 261 321 963 1913 3103 5739 9309 17217 27927 55477 166431 204691 499293 614073 1842219 5936039 17808117 53424351