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53207333 = 155334261
BaseRepresentation
bin1100101011111…
…0000100100101
310201010012201222
43022332010211
5102110113313
65140230125
71214153264
oct312760445
9121105658
1053207333
1128041503
121599b345
13b03c23a
1470d05db
154a10208
hex32be125

53207333 has 4 divisors (see below), whose sum is σ = 53243148. Its totient is φ = 53171520.

The previous prime is 53207317. The next prime is 53207351. The reversal of 53207333 is 33370235.

53207333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33431524 + 19775809 = 5782^2 + 4447^2 .

It is a cyclic number.

It is not a de Polignac number, because 53207333 - 24 = 53207317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53207933) 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 3 ways as a sum of consecutive naturals, for example, 15578 + ... + 18683.

It is an arithmetic number, because the mean of its divisors is an integer number (13310787).

Almost surely, 253207333 is an apocalyptic number.

It is an amenable number.

53207333 is a deficient number, since it is larger than the sum of its proper divisors (35815).

53207333 is a wasteful number, since it uses less digits than its factorization.

53207333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35814.

The product of its (nonzero) digits is 5670, while the sum is 26.

The square root of 53207333 is about 7294.3356791417. The cubic root of 53207333 is about 376.1177506753.

Adding to 53207333 its reverse (33370235), we get a palindrome (86577568).

The spelling of 53207333 in words is "fifty-three million, two hundred seven thousand, three hundred thirty-three".

Divisors: 1 1553 34261 53207333