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80404804520 = 2353795303747
BaseRepresentation
bin100101011100001111…
…1111111001110101000
321200112112211021101222
41022320133333032220
52304132112221040
6100534254001212
75544335363465
oct1127037771650
9250475737358
1080404804520
1131110463777
12136bb4a6208
137774c69211
143c6a83066c
152158cd0bb5
hex12b87ff3a8

80404804520 has 32 divisors (see below), whose sum is σ = 181388181600. Its totient is φ = 32077055808.

The previous prime is 80404804507. The next prime is 80404804531. The reversal of 80404804520 is 2540840408.

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, 2636714 + ... + 2667033.

It is an arithmetic number, because the mean of its divisors is an integer number (5668380675).

Almost surely, 280404804520 is an apocalyptic number.

It is an amenable number.

80404804520 is an abundant number, since it is smaller than the sum of its proper divisors (100983377080).

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

80404804520 is a wasteful number, since it uses less digits than its factorization.

80404804520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304137 (or 5304133 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The spelling of 80404804520 in words is "eighty billion, four hundred four million, eight hundred four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 379 758 1516 1895 3032 3790 7580 15160 5303747 10607494 21214988 26518735 42429976 53037470 106074940 212149880 2010120113 4020240226 8040480452 10050600565 16080960904 20101201130 40202402260 80404804520