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80794140 = 22357227481
BaseRepresentation
bin1001101000011…
…01001000011100
312122000202201120
410310031020130
5131140403030
612003410540
72000511300
oct464151034
9178022646
1080794140
1141673919
1223083a50
131397a9ab
14aa31d00
15715e010
hex4d0d21c

80794140 has 72 divisors (see below), whose sum is σ = 263167632. Its totient is φ = 18466560.

The previous prime is 80794117. The next prime is 80794141. The reversal of 80794140 is 4149708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80794141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10801 + ... + 16680.

It is an arithmetic number, because the mean of its divisors is an integer number (3655106).

Almost surely, 280794140 is an apocalyptic number.

It is an amenable number.

80794140 is an abundant number, since it is smaller than the sum of its proper divisors (182373492).

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

80794140 is a wasteful number, since it uses less digits than its factorization.

80794140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27507 (or 27498 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 80794140 is about 8988.5560575656. The cubic root of 80794140 is about 432.3080150731.

The spelling of 80794140 in words is "eighty million, seven hundred ninety-four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1470 2940 27481 54962 82443 109924 137405 164886 192367 274810 329772 384734 412215 549620 577101 769468 824430 961835 1154202 1346569 1648860 1923670 2308404 2693138 2885505 3847340 4039707 5386276 5771010 6732845 8079414 11542020 13465690 16158828 20198535 26931380 40397070 80794140