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808474420240 = 24523960769661
BaseRepresentation
bin10111100001111001101…
…01001010010000010000
32212021210222020220002221
423300330311022100100
5101221223422421430
61415224044350424
7112260515120404
oct13607465122020
92767728226087
10808474420240
11291965808093
12110830545414
135b314889816
142b1b7a47104
151606c2a157a
hexbc3cd4a410

808474420240 has 80 divisors (see below), whose sum is σ = 1890704701440. Its totient is φ = 321501519360.

The previous prime is 808474420213. The next prime is 808474420249. The reversal of 808474420240 is 42024474808.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (808474420249) 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 15 ways as a sum of consecutive naturals, for example, 11571010 + ... + 11640670.

It is an arithmetic number, because the mean of its divisors is an integer number (23633808768).

Almost surely, 2808474420240 is an apocalyptic number.

808474420240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

808474420240 is an abundant number, since it is smaller than the sum of its proper divisors (1082230281200).

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

808474420240 is a wasteful number, since it uses less digits than its factorization.

808474420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70520 (or 70514 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 43.

The spelling of 808474420240 in words is "eight hundred eight billion, four hundred seventy-four million, four hundred twenty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 239 478 607 956 1195 1214 1912 2390 2428 3035 3824 4780 4856 6070 9560 9712 12140 19120 24280 48560 69661 139322 145073 278644 290146 348305 557288 580292 696610 725365 1114576 1160584 1393220 1450730 2321168 2786440 2901460 5572880 5802920 11605840 16648979 33297958 42284227 66595916 83244895 84568454 133191832 166489790 169136908 211421135 266383664 332979580 338273816 422842270 665959160 676547632 845684540 1331918320 1691369080 3382738160 10105930253 20211860506 40423721012 50529651265 80847442024 101059302530 161694884048 202118605060 404237210120 808474420240