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404123434 = 211132834993
BaseRepresentation
bin11000000101100…
…110111100101010
31001011102121010121
4120011212330222
51311423422214
6104033433454
713004664301
oct3005467452
91034377117
10404123434
11198131a10
12b340b88a
13659563c0
143b959438
152572a424
hex18166f2a

404123434 has 32 divisors (see below), whose sum is σ = 714821184. Its totient is φ = 168929280.

The previous prime is 404123393. The next prime is 404123449. The reversal of 404123434 is 434321404.

It is a junction number, because it is equal to n+sod(n) for n = 404123399 and 404123408.

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, 78442 + ... + 83434.

It is an arithmetic number, because the mean of its divisors is an integer number (22338162).

Almost surely, 2404123434 is an apocalyptic number.

404123434 is a deficient number, since it is larger than the sum of its proper divisors (310697750).

404123434 is a wasteful number, since it uses less digits than its factorization.

404123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 404123434 is about 20102.8215432561. The cubic root of 404123434 is about 739.3294595417.

Adding to 404123434 its reverse (434321404), we get a palindrome (838444838).

The spelling of 404123434 in words is "four hundred four million, one hundred twenty-three thousand, four hundred thirty-four".

Divisors: 1 2 11 13 22 26 143 283 286 566 3113 3679 4993 6226 7358 9986 40469 54923 64909 80938 109846 129818 713999 1413019 1427998 2826038 15543209 18369247 31086418 36738494 202061717 404123434