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404030044 = 221171283457
BaseRepresentation
bin11000000101010…
…000001001011100
31001011020212000201
4120011100021130
51311412430134
6104031433244
713004125105
oct3005201134
91034225021
10404030044
11198078830
12b3385824
1365922a42
143b9333ac
152570c914
hex1815025c

404030044 has 48 divisors (see below), whose sum is σ = 786675456. Its totient is φ = 180028800.

The previous prime is 404030017. The next prime is 404030057. The reversal of 404030044 is 440030404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883864 + ... + 884320.

It is an arithmetic number, because the mean of its divisors is an integer number (16389072).

Almost surely, 2404030044 is an apocalyptic number.

404030044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

404030044 is a deficient number, since it is larger than the sum of its proper divisors (382645412).

404030044 is a wasteful number, since it uses less digits than its factorization.

404030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 404030044 is about 20100.4986007810. The cubic root of 404030044 is about 739.2725039255.

Adding to 404030044 its reverse (440030404), we get a palindrome (844060448).

The spelling of 404030044 in words is "four hundred four million, thirty thousand, forty-four".

Divisors: 1 2 4 11 22 44 71 142 283 284 457 566 781 914 1132 1562 1828 3113 3124 5027 6226 10054 12452 20093 20108 32447 40186 64894 80372 129331 129788 221023 258662 356917 442046 517324 713834 884092 1422641 1427668 2845282 5690564 9182501 18365002 36730004 101007511 202015022 404030044