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80842312 = 2318315519
BaseRepresentation
bin1001101000110…
…00111001001000
312122010012210201
410310120321020
5131143423222
612004421544
72001101605
oct464307110
9178105721
1080842312
11416a7031
12230a78b4
13139968b5
14aa456ac
15716d427
hex4d18e48

80842312 has 16 divisors (see below), whose sum is σ = 151689600. Its totient is φ = 40391760.

The previous prime is 80842297. The next prime is 80842351. The reversal of 80842312 is 21324808.

It is an unprimeable number.

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, 11889 + ... + 17407.

It is an arithmetic number, because the mean of its divisors is an integer number (9480600).

Almost surely, 280842312 is an apocalyptic number.

It is an amenable number.

80842312 is a deficient number, since it is larger than the sum of its proper divisors (70847288).

80842312 is a wasteful number, since it uses less digits than its factorization.

80842312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7356 (or 7352 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 80842312 is about 8991.2352877677. The cubic root of 80842312 is about 432.3939165349.

The spelling of 80842312 in words is "eighty million, eight hundred forty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 1831 3662 5519 7324 11038 14648 22076 44152 10105289 20210578 40421156 80842312