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404211430 = 25723251063
BaseRepresentation
bin11000000101111…
…100011011100110
31001011121001211201
4120011330123212
51311434231210
6104035353114
713005511660
oct3005743346
91034531751
10404211430
11198192037
12b345279a
136598747c
143b97d530
152574653a
hex1817c6e6

404211430 has 32 divisors (see below), whose sum is σ = 867677184. Its totient is φ = 132560736.

The previous prime is 404211427. The next prime is 404211463. The reversal of 404211430 is 34112404.

It is a super-3 number, since 3×4042114303 (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404211398 and 404211407.

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, 123922 + ... + 127141.

It is an arithmetic number, because the mean of its divisors is an integer number (27114912).

Almost surely, 2404211430 is an apocalyptic number.

404211430 is an abundant number, since it is smaller than the sum of its proper divisors (463465754).

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

404211430 is a wasteful number, since it uses less digits than its factorization.

404211430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251100.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404211430 is about 20105.0100721188. The cubic root of 404211430 is about 739.3831174988.

Adding to 404211430 its reverse (34112404), we get a palindrome (438323834).

The spelling of 404211430 in words is "four hundred four million, two hundred eleven thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 251063 502126 1255315 1757441 2510630 3514882 5774449 8787205 11548898 17574410 28872245 40421143 57744490 80842286 202105715 404211430