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53031133 = 229367631
BaseRepresentation
bin1100101001001…
…1000011011101
310200210021001001
43022103003131
5102033444013
65132350301
71212520501
oct312230335
9120707031
1053031133
1127a31091
1215915391
13aca9c8c
147086301
1549c7ddd
hex32930dd

53031133 has 8 divisors (see below), whose sum is σ = 53492480. Its totient is φ = 52572240.

The previous prime is 53031131. The next prime is 53031157. The reversal of 53031133 is 33113035.

53031133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53031133 - 21 = 53031131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53031133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53031131) 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 7 ways as a sum of consecutive naturals, for example, 83728 + ... + 84358.

It is an arithmetic number, because the mean of its divisors is an integer number (6686560).

Almost surely, 253031133 is an apocalyptic number.

It is an amenable number.

53031133 is a deficient number, since it is larger than the sum of its proper divisors (461347).

53031133 is a wasteful number, since it uses less digits than its factorization.

53031133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 53031133 is about 7282.2477985853. The cubic root of 53031133 is about 375.7021109904.

Adding to 53031133 its reverse (33113035), we get a palindrome (86144168).

The spelling of 53031133 in words is "fifty-three million, thirty-one thousand, one hundred thirty-three".

Divisors: 1 229 367 631 84043 144499 231577 53031133