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53404105 = 510680821
BaseRepresentation
bin1100101110111…
…0000111001001
310201111012122211
43023232013021
5102132412410
65144345121
71215633046
oct313560711
9121435584
1053404105
1128166327
1215a751a1
13b0aa981
1471421cd
154a4d68a
hex32ee1c9

53404105 has 4 divisors (see below), whose sum is σ = 64084932. Its totient is φ = 42723280.

The previous prime is 53404069. The next prime is 53404111. The reversal of 53404105 is 50140435.

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 30162064 + 23242041 = 5492^2 + 4821^2 .

It is not a de Polignac number, because 53404105 - 213 = 53395913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340406 + ... + 5340415.

It is an arithmetic number, because the mean of its divisors is an integer number (16021233).

Almost surely, 253404105 is an apocalyptic number.

It is an amenable number.

53404105 is a deficient number, since it is larger than the sum of its proper divisors (10680827).

53404105 is a wasteful number, since it uses less digits than its factorization.

53404105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680826.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 53404105 is about 7307.8112318258. The cubic root of 53404105 is about 376.5808346817.

The spelling of 53404105 in words is "fifty-three million, four hundred four thousand, one hundred five".

Divisors: 1 5 10680821 53404105