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53317423 = 173136319
BaseRepresentation
bin1100101101100…
…0111100101111
310201022210202101
43023120330233
5102122124143
65142435531
71215122245
oct313307457
9121283671
1053317423
1128107195
1215a32ba7
13b07a393
14711c795
154a32b4d
hex32d8f2f

53317423 has 4 divisors (see below), whose sum is σ = 56453760. Its totient is φ = 50181088.

The previous prime is 53317421. The next prime is 53317441. The reversal of 53317423 is 32471335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53317423 - 21 = 53317421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53317391 and 53317400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53317421) 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, 1568143 + ... + 1568176.

It is an arithmetic number, because the mean of its divisors is an integer number (14113440).

Almost surely, 253317423 is an apocalyptic number.

53317423 is a deficient number, since it is larger than the sum of its proper divisors (3136337).

53317423 is a wasteful number, since it uses less digits than its factorization.

53317423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136336.

The product of its digits is 7560, while the sum is 28.

The square root of 53317423 is about 7301.8780460920. The cubic root of 53317423 is about 376.3769773375.

Adding to 53317423 its reverse (32471335), we get a palindrome (85788758).

It can be divided in two parts, 5331742 and 3, that added together give a triangular number (5331745 = T3265).

The spelling of 53317423 in words is "fifty-three million, three hundred seventeen thousand, four hundred twenty-three".

Divisors: 1 17 3136319 53317423