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804078080920 = 23536061557443
BaseRepresentation
bin10111011001101101100…
…10011101001110011000
32211212110120202201022201
423230312302131032120
5101133222442042140
61413215515455544
7112043542626532
oct13546662351630
92755416681281
10804078080920
1129000a129304
1210ba041575b4
135aa93b08aca
142acbbc02852
1515db133c49a
hexbb36c9d398

804078080920 has 32 divisors (see below), whose sum is σ = 1809229097520. Its totient is φ = 321621736320.

The previous prime is 804078080909. The next prime is 804078080921. The reversal of 804078080920 is 29080870408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804078080921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163719 + ... + 1721161.

Almost surely, 2804078080920 is an apocalyptic number.

It is an amenable number.

804078080920 is an abundant number, since it is smaller than the sum of its proper divisors (1005151016600).

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

804078080920 is a wasteful number, since it uses less digits than its factorization.

804078080920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593515 (or 593511 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 804078080920 in words is "eight hundred four billion, seventy-eight million, eighty thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 36061 72122 144244 180305 288488 360610 557443 721220 1114886 1442440 2229772 2787215 4459544 5574430 11148860 22297720 20101952023 40203904046 80407808092 100509760115 160815616184 201019520230 402039040460 804078080920