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404521327 = 782969709
BaseRepresentation
bin11000000111001…
…000000101101111
31001012011210221101
4120013020011233
51312024140302
6104050143531
713011242320
oct3007100557
91035153841
10404521327
11198383951
12b3581ba7
1365a65542
143ba20447
15257a8287
hex181c816f

404521327 has 8 divisors (see below), whose sum is σ = 462874400. Its totient is φ = 346309344.

The previous prime is 404521301. The next prime is 404521349. The reversal of 404521327 is 723125404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404521327 - 215 = 404488559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404521295 and 404521304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404521357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29052 + ... + 40657.

It is an arithmetic number, because the mean of its divisors is an integer number (57859300).

Almost surely, 2404521327 is an apocalyptic number.

404521327 is a deficient number, since it is larger than the sum of its proper divisors (58353073).

404521327 is an equidigital number, since it uses as much as digits as its factorization.

404521327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70545.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 404521327 is about 20112.7155550910. The cubic root of 404521327 is about 739.5720236516.

It can be divided in two parts, 404 and 521327, that added together give a triangular number (521731 = T1021).

The spelling of 404521327 in words is "four hundred four million, five hundred twenty-one thousand, three hundred twenty-seven".

Divisors: 1 7 829 5803 69709 487963 57788761 404521327