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440104023 = 347968777
BaseRepresentation
bin11010001110110…
…111010001010111
31010200010121020000
4122032313101113
51400131312043
6111400542343
713622552052
oct3216672127
91120117200
10440104023
11206477737
121034819b3
13702435a8
1442643a99
15289862d3
hex1a3b7457

440104023 has 20 divisors (see below), whose sum is σ = 665771040. Its totient is φ = 289684512.

The previous prime is 440103967. The next prime is 440104037. The reversal of 440104023 is 320401044.

It is not a de Polignac number, because 440104023 - 226 = 372995159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440103987 and 440104005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440104123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27990 + ... + 40787.

It is an arithmetic number, because the mean of its divisors is an integer number (33288552).

Almost surely, 2440104023 is an apocalyptic number.

440104023 is a deficient number, since it is larger than the sum of its proper divisors (225667017).

440104023 is an equidigital number, since it uses as much as digits as its factorization.

440104023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68868 (or 68859 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 440104023 is about 20978.6563678421. The cubic root of 440104023 is about 760.6504259936.

Adding to 440104023 its reverse (320401044), we get a palindrome (760505067).

The spelling of 440104023 in words is "four hundred forty million, one hundred four thousand, twenty-three".

Divisors: 1 3 9 27 79 81 237 711 2133 6399 68777 206331 618993 1856979 5433383 5570937 16300149 48900447 146701341 440104023