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404241481 = 757748783
BaseRepresentation
bin11000000110000…
…011110001001001
31001011122121001201
4120012003301021
51311441211411
6104040144201
713005665410
oct3006036111
91034577051
10404241481
11198202676
12b3468061
1365998057
143b98a477
15257503c1
hex18183c49

404241481 has 4 divisors (see below), whose sum is σ = 461990272. Its totient is φ = 346492692.

The previous prime is 404241479. The next prime is 404241557. The reversal of 404241481 is 184142404.

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 not a de Polignac number, because 404241481 - 21 = 404241479 is a prime.

It is a super-2 number, since 2×4042414812 = 326822349922146722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404241421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28874385 + ... + 28874398.

It is an arithmetic number, because the mean of its divisors is an integer number (115497568).

Almost surely, 2404241481 is an apocalyptic number.

It is an amenable number.

404241481 is a deficient number, since it is larger than the sum of its proper divisors (57748791).

404241481 is an equidigital number, since it uses as much as digits as its factorization.

404241481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57748790.

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 404241481 is about 20105.7574092597. The cubic root of 404241481 is about 739.4014401305.

Adding to 404241481 its reverse (184142404), we get a palindrome (588383885).

It can be divided in two parts, 40424 and 1481, that added together give a triangular number (41905 = T289).

The spelling of 404241481 in words is "four hundred four million, two hundred forty-one thousand, four hundred eighty-one".

Divisors: 1 7 57748783 404241481