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440104040 = 23523814621
BaseRepresentation
bin11010001110110…
…111010001101000
31010200010121020122
4122032313101220
51400131312130
6111400542412
713622552105
oct3216672150
91120117218
10440104040
11206477752
12103481a08
13702435bc
1442643aac
15289862e5
hex1a3b7468

440104040 has 32 divisors (see below), whose sum is σ = 990864360. Its totient is φ = 175929600.

The previous prime is 440104037. The next prime is 440104061. The reversal of 440104040 is 40401044.

It can be written as a sum of positive squares in 4 ways, for example, as 167391844 + 272712196 = 12938^2 + 16514^2 .

It is a super-3 number, since 3×4401040403 (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92930 + ... + 97550.

Almost surely, 2440104040 is an apocalyptic number.

440104040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440104040 is an abundant number, since it is smaller than the sum of its proper divisors (550760320).

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

440104040 is a wasteful number, since it uses less digits than its factorization.

440104040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7009 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 440104040 is about 20978.6567730158. The cubic root of 440104040 is about 760.6504357876.

Adding to 440104040 its reverse (40401044), we get a palindrome (480505084).

The spelling of 440104040 in words is "four hundred forty million, one hundred four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 2381 4621 4762 9242 9524 11905 18484 19048 23105 23810 36968 46210 47620 92420 95240 184840 11002601 22005202 44010404 55013005 88020808 110026010 220052020 440104040