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51423 = 361281
BaseRepresentation
bin1100100011011111
32121112120
430203133
53121143
61034023
7302631
oct144337
977476
1051423
11356a9
1225913
131a538
1414a51
1510383
hexc8df

51423 has 8 divisors (see below), whose sum is σ = 69936. Its totient is φ = 33600.

The previous prime is 51421. The next prime is 51427. The reversal of 51423 is 32415.

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

It is not a de Polignac number, because 51423 - 21 = 51421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 323.

It is an arithmetic number, because the mean of its divisors is an integer number (8742).

251423 is an apocalyptic number.

51423 is a deficient number, since it is larger than the sum of its proper divisors (18513).

51423 is a wasteful number, since it uses less digits than its factorization.

51423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 120, while the sum is 15.

The square root of 51423 is about 226.7663996275. The cubic root of 51423 is about 37.1865427101.

Adding to 51423 its reverse (32415), we get a palindrome (83838).

It can be divided in two parts, 51 and 423, that added together give a palindrome (474).

The spelling of 51423 in words is "fifty-one thousand, four hundred twenty-three".

Divisors: 1 3 61 183 281 843 17141 51423