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53431169 = 1114533343
BaseRepresentation
bin1100101111010…
…0101110000001
310201112120210012
43023310232001
5102134244134
65145114305
71216105001
oct313645601
9121476705
1053431169
11281846a0
1215a88995
13b0ba09c
14714c001
154a566ce
hex32f4b81

53431169 has 8 divisors (see below), whose sum is σ = 58346112. Its totient is φ = 48525840.

The previous prime is 53431141. The next prime is 53431193. The reversal of 53431169 is 96113435.

53431169 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 de Polignac number, because none of the positive numbers 2k-53431169 is a prime.

It is a super-2 number, since 2×534311692 = 5709779641413122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53434169) 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, 14312 + ... + 17654.

It is an arithmetic number, because the mean of its divisors is an integer number (7293264).

Almost surely, 253431169 is an apocalyptic number.

It is an amenable number.

53431169 is a deficient number, since it is larger than the sum of its proper divisors (4914943).

53431169 is a wasteful number, since it uses less digits than its factorization.

53431169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807.

The product of its digits is 9720, while the sum is 32.

The square root of 53431169 is about 7309.6627145170. The cubic root of 53431169 is about 376.6444381728.

The spelling of 53431169 in words is "fifty-three million, four hundred thirty-one thousand, one hundred sixty-nine".

Divisors: 1 11 1453 3343 15983 36773 4857379 53431169