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808004444440 = 235791272013367
BaseRepresentation
bin10111100001000001101…
…00010110000100011000
32212020121012220122111211
423300200310112010120
5101214243114210230
61415105255232504
7112243050312514
oct13604064260430
92766535818454
10808004444440
11291744498336
1211071b078734
135b26b3b772b
142b171469144
1516040db942a
hexbc20d16118

808004444440 has 64 divisors (see below), whose sum is σ = 1855519948800. Its totient is φ = 316597776768.

The previous prime is 808004444411. The next prime is 808004444473. The reversal of 808004444440 is 44444400808.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 808004444393 and 808004444402.

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, 605364 + ... + 1408003.

It is an arithmetic number, because the mean of its divisors is an integer number (28992499200).

Almost surely, 2808004444440 is an apocalyptic number.

It is an amenable number.

808004444440 is an abundant number, since it is smaller than the sum of its proper divisors (1047515504360).

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

808004444440 is a wasteful number, since it uses less digits than its factorization.

808004444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013584 (or 2013580 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 808004444440 in words is "eight hundred eight billion, four million, four hundred forty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 79 127 158 254 316 395 508 632 635 790 1016 1270 1580 2540 3160 5080 10033 20066 40132 50165 80264 100330 200660 401320 2013367 4026734 8053468 10066835 16106936 20133670 40267340 80534680 159055993 255697609 318111986 511395218 636223972 795279965 1022790436 1272447944 1278488045 1590559930 2045580872 2556976090 3181119860 5113952180 6362239720 10227904360 20200111111 40400222222 80800444444 101000555555 161600888888 202001111110 404002222220 808004444440