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53289469 = 85362473
BaseRepresentation
bin1100101101001…
…0000111111101
310201021101102001
43023102013331
5102120230334
65142102301
71214644612
oct313220775
9121241361
1053289469
1128098192
1215a1a991
13b06a73c
147112509
154a29714
hex32d21fd

53289469 has 4 divisors (see below), whose sum is σ = 53352796. Its totient is φ = 53226144.

The previous prime is 53289461. The next prime is 53289479. The reversal of 53289469 is 96498235.

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 13410244 + 39879225 = 3662^2 + 6315^2 .

It is a cyclic number.

It is not a de Polignac number, because 53289469 - 23 = 53289461 is a prime.

It is a super-2 number, since 2×532894692 = 5679535012603922, 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 (53289461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30384 + ... + 32089.

It is an arithmetic number, because the mean of its divisors is an integer number (13338199).

Almost surely, 253289469 is an apocalyptic number.

It is an amenable number.

53289469 is a deficient number, since it is larger than the sum of its proper divisors (63327).

53289469 is an equidigital number, since it uses as much as digits as its factorization.

53289469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63326.

The product of its digits is 466560, while the sum is 46.

The square root of 53289469 is about 7299.9636300464. The cubic root of 53289469 is about 376.3111884533.

The spelling of 53289469 in words is "fifty-three million, two hundred eighty-nine thousand, four hundred sixty-nine".

Divisors: 1 853 62473 53289469