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51424 = 251607
BaseRepresentation
bin1100100011100000
32121112121
430203200
53121144
61034024
7302632
oct144340
977477
1051424
11356aa
1225914
131a539
1414a52
1510384
hexc8e0

51424 has 12 divisors (see below), whose sum is σ = 101304. Its totient is φ = 25696.

The previous prime is 51421. The next prime is 51427. The reversal of 51424 is 42415.

51424 is nontrivially palindromic in base 9.

It is an interprime number because it is at equal distance from previous prime (51421) and next prime (51427).

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 51398 and 51407.

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 as a sum of consecutive naturals, namely, 772 + ... + 835.

It is an arithmetic number, because the mean of its divisors is an integer number (8442).

251424 is an apocalyptic number.

It is an amenable number.

51424 is a deficient number, since it is larger than the sum of its proper divisors (49880).

51424 is a wasteful number, since it uses less digits than its factorization.

51424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1609 counting only the distinct ones).

The product of its digits is 160, while the sum is 16.

The square root of 51424 is about 226.7686045289. The cubic root of 51424 is about 37.1867837585.

Adding to 51424 its reverse (42415), we get a palindrome (93839).

Subtracting from 51424 its reverse (42415), we obtain a palindrome (9009).

The spelling of 51424 in words is "fifty-one thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 1607 3214 6428 12856 25712 51424