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52404113 = 101951427
BaseRepresentation
bin1100011111100…
…1111110010001
310122121101221002
43013321332101
5101403412423
65111111345
71204266446
oct307717621
9118541832
1052404113
1127642a93
1215672555
13ab1a768
146d619cd
154902228
hex31f9f91

52404113 has 4 divisors (see below), whose sum is σ = 52456560. Its totient is φ = 52351668.

The previous prime is 52404103. The next prime is 52404119. The reversal of 52404113 is 31140425.

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 a cyclic number.

It is not a de Polignac number, because 52404113 - 212 = 52400017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52404119) 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, 24695 + ... + 26732.

It is an arithmetic number, because the mean of its divisors is an integer number (13114140).

Almost surely, 252404113 is an apocalyptic number.

It is an amenable number.

52404113 is a deficient number, since it is larger than the sum of its proper divisors (52447).

52404113 is a wasteful number, since it uses less digits than its factorization.

52404113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52446.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 52404113 is about 7239.0685174268. The cubic root of 52404113 is about 374.2155167813.

Adding to 52404113 its reverse (31140425), we get a palindrome (83544538).

The spelling of 52404113 in words is "fifty-two million, four hundred four thousand, one hundred thirteen".

Divisors: 1 1019 51427 52404113