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80403212 = 22193134127
BaseRepresentation
bin1001100101011…
…01101100001100
312121021220110202
410302231230030
5131040400322
611551153032
71664262461
oct462555414
9177256422
1080403212
114142713a
1222b15778
1313871a86
14a96d668
1570d3292
hex4cadb0c

80403212 has 24 divisors (see below), whose sum is σ = 152893440. Its totient is φ = 36856080.

The previous prime is 80403199. The next prime is 80403233. The reversal of 80403212 is 21230408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14708 + ... + 19419.

It is an arithmetic number, because the mean of its divisors is an integer number (6370560).

Almost surely, 280403212 is an apocalyptic number.

It is an amenable number.

80403212 is a deficient number, since it is larger than the sum of its proper divisors (72490228).

80403212 is a wasteful number, since it uses less digits than its factorization.

80403212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34181 (or 34179 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 80403212 is about 8966.7838158394. The cubic root of 80403212 is about 431.6096367930.

The spelling of 80403212 in words is "eighty million, four hundred three thousand, two hundred twelve".

Divisors: 1 2 4 19 31 38 62 76 124 589 1178 2356 34127 68254 136508 648413 1057937 1296826 2115874 2593652 4231748 20100803 40201606 80403212