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53769 = 317923
BaseRepresentation
bin1101001000001001
32201202110
431020021
53210034
61052533
7312522
oct151011
981673
1053769
1137441
1227149
131b621
1415849
1510de9
hexd209

53769 has 4 divisors (see below), whose sum is σ = 71696. Its totient is φ = 35844.

The previous prime is 53759. The next prime is 53773. The reversal of 53769 is 96735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53769 - 211 = 51721 is a prime.

It is a super-2 number, since 2×537692 = 5782210722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53719) 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, 8959 + ... + 8964.

It is an arithmetic number, because the mean of its divisors is an integer number (17924).

253769 is an apocalyptic number.

It is an amenable number.

53769 is a deficient number, since it is larger than the sum of its proper divisors (17927).

53769 is a wasteful number, since it uses less digits than its factorization.

53769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17926.

The product of its digits is 5670, while the sum is 30.

The square root of 53769 is about 231.8814352207. The cubic root of 53769 is about 37.7436578384.

It can be divided in two parts, 5376 and 9, that multiplied together give a palindrome (48384).

The spelling of 53769 in words is "fifty-three thousand, seven hundred sixty-nine".

Divisors: 1 3 17923 53769