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24401 = 131877
BaseRepresentation
bin101111101010001
31020110202
411331101
51240101
6304545
7131066
oct57521
936422
1024401
1117373
1212155
13b150
148c6d
15736b
hex5f51

24401 has 4 divisors (see below), whose sum is σ = 26292. Its totient is φ = 22512.

The previous prime is 24391. The next prime is 24407. The reversal of 24401 is 10442.

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 9025 + 15376 = 95^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 24401 - 26 = 24337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24407) 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, 926 + ... + 951.

It is an arithmetic number, because the mean of its divisors is an integer number (6573).

224401 is an apocalyptic number.

It is an amenable number.

24401 is a deficient number, since it is larger than the sum of its proper divisors (1891).

24401 is a wasteful number, since it uses less digits than its factorization.

24401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 24401 is about 156.2081944073. The cubic root of 24401 is about 29.0047554627.

Adding to 24401 its reverse (10442), we get a palindrome (34843).

The spelling of 24401 in words is "twenty-four thousand, four hundred one", and thus it is an iban number.

Divisors: 1 13 1877 24401