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404441430 = 23523586147
BaseRepresentation
bin11000000110110…
…100100101010110
31001012000202100020
4120012310211112
51312014111210
6104044330010
713010460351
oct3006644526
91035022306
10404441430
11198329918
12b3543906
1365a38073
143b9dd298
152578e770
hex181b4956

404441430 has 32 divisors (see below), whose sum is σ = 1012863744. Its totient is φ = 103161696.

The previous prime is 404441417. The next prime is 404441437. The reversal of 404441430 is 34144404.

It is a self number, because there is not a number n which added to its sum of digits gives 404441430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404441437) 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 15 ways as a sum of consecutive naturals, for example, 292384 + ... + 293763.

It is an arithmetic number, because the mean of its divisors is an integer number (31651992).

Almost surely, 2404441430 is an apocalyptic number.

404441430 is an abundant number, since it is smaller than the sum of its proper divisors (608422314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404441430 is a wasteful number, since it uses less digits than its factorization.

404441430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586180.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 404441430 is about 20110.7292259629. The cubic root of 404441430 is about 739.5233294933.

Adding to 404441430 its reverse (34144404), we get a palindrome (438585834).

The spelling of 404441430 in words is "four hundred four million, four hundred forty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 586147 1172294 1758441 2930735 3516882 5861470 8792205 13481381 17584410 26962762 40444143 67406905 80888286 134813810 202220715 404441430