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80840468 = 2230765831
BaseRepresentation
bin1001101000110…
…00011100010100
312122010010021102
410310120130110
5131143343333
612004405232
72001063332
oct464303424
9178103242
1080840468
11416a5705
12230a6818
1313995ac7
14aa44b52
15716cae8
hex4d18714

80840468 has 12 divisors (see below), whose sum is σ = 141933792. Its totient is φ = 40287960.

The previous prime is 80840447. The next prime is 80840471. The reversal of 80840468 is 86404808.

It is a congruent number.

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, 31688 + ... + 34143.

It is an arithmetic number, because the mean of its divisors is an integer number (11827816).

Almost surely, 280840468 is an apocalyptic number.

It is an amenable number.

80840468 is a deficient number, since it is larger than the sum of its proper divisors (61093324).

80840468 is a wasteful number, since it uses less digits than its factorization.

80840468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66142 (or 66140 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 80840468 is about 8991.1327428751. The cubic root of 80840468 is about 432.3906288983.

The spelling of 80840468 in words is "eighty million, eight hundred forty thousand, four hundred sixty-eight".

Divisors: 1 2 4 307 614 1228 65831 131662 263324 20210117 40420234 80840468