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80844312 = 2333368513
BaseRepresentation
bin1001101000110…
…01011000011000
312122010022112210
410310121120120
5131144004222
612004435120
72001110463
oct464313030
9178108483
1080844312
11416a858a
12230a8aa0
1313997793
14aa462da
15716dd0c
hex4d19618

80844312 has 16 divisors (see below), whose sum is σ = 202110840. Its totient is φ = 26948096.

The previous prime is 80844293. The next prime is 80844317. The reversal of 80844312 is 21344808.

It is a self number, because there is not a number n which added to its sum of digits gives 80844312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80844317) 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 3 ways as a sum of consecutive naturals, for example, 1684233 + ... + 1684280.

Almost surely, 280844312 is an apocalyptic number.

It is an amenable number.

80844312 is an abundant number, since it is smaller than the sum of its proper divisors (121266528).

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

80844312 is a wasteful number, since it uses less digits than its factorization.

80844312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368522 (or 3368518 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 80844312 is about 8991.3465065028. The cubic root of 80844312 is about 432.3974822449.

The spelling of 80844312 in words is "eighty million, eight hundred forty-four thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 3368513 6737026 10105539 13474052 20211078 26948104 40422156 80844312