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80678330 = 2534923117
BaseRepresentation
bin1001100111100…
…00110110111010
312121210212212022
410303300312322
5131123201310
612001114442
71666516535
oct463606672
9177725768
1080678330
11415a4907
1223028a22
131393a075
14aa01a1c
157139a55
hex4cf0dba

80678330 has 16 divisors (see below), whose sum is σ = 145643400. Its totient is φ = 32177472.

The previous prime is 80678329. The next prime is 80678357. The reversal of 80678330 is 3387608.

It can be written as a sum of positive squares in 4 ways, for example, as 45549001 + 35129329 = 6749^2 + 5927^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8069 + ... + 15048.

Almost surely, 280678330 is an apocalyptic number.

80678330 is a deficient number, since it is larger than the sum of its proper divisors (64965070).

80678330 is a wasteful number, since it uses less digits than its factorization.

80678330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23473.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80678330 is about 8982.1116670859. Note that the first 3 decimals coincide. The cubic root of 80678330 is about 432.1013601038.

The spelling of 80678330 in words is "eighty million, six hundred seventy-eight thousand, three hundred thirty".

Divisors: 1 2 5 10 349 698 1745 3490 23117 46234 115585 231170 8067833 16135666 40339165 80678330