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404111 = 1921269
BaseRepresentation
bin1100010101010001111
3202112100002
41202222033
5100412421
612354515
73302111
oct1425217
9675302
10404111
11256684
12175a3b
13111c26
14a73b1
157eb0b
hex62a8f

404111 has 4 divisors (see below), whose sum is σ = 425400. Its totient is φ = 382824.

The previous prime is 404099. The next prime is 404113. The reversal of 404111 is 111404.

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 404111 - 214 = 387727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404092 and 404101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404113) 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, 10616 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (106350).

2404111 is an apocalyptic number.

404111 is a deficient number, since it is larger than the sum of its proper divisors (21289).

404111 is a wasteful number, since it uses less digits than its factorization.

404111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21288.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 404111 is about 635.6972549886. The cubic root of 404111 is about 73.9321876944.

Adding to 404111 its reverse (111404), we get a palindrome (515515).

It can be divided in two parts, 404 and 111, that multiplied together give a palindrome (44844).

The spelling of 404111 in words is "four hundred four thousand, one hundred eleven", and thus it is an iban number.

Divisors: 1 19 21269 404111