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80989296 = 2434339239
BaseRepresentation
bin1001101001111…
…00110001110000
312122101200102120
410310330301300
5131213124141
612011514240
72002253253
oct464746160
9178350376
1080989296
1141797503
1223158980
1313a1877b
14aa8309a
15719bc66
hex4d3cc70

80989296 has 40 divisors (see below), whose sum is σ = 214093440. Its totient is φ = 26367936.

The previous prime is 80989283. The next prime is 80989351. The reversal of 80989296 is 69298908.

It is a congruent number.

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, 17556 + ... + 21683.

It is an arithmetic number, because the mean of its divisors is an integer number (5352336).

Almost surely, 280989296 is an apocalyptic number.

80989296 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

80989296 is an abundant number, since it is smaller than the sum of its proper divisors (133104144).

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

80989296 is a wasteful number, since it uses less digits than its factorization.

80989296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39293 (or 39287 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 80989296 is about 8999.4053136860. The cubic root of 80989296 is about 432.6558111916.

The spelling of 80989296 in words is "eighty million, nine hundred eighty-nine thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 43 48 86 129 172 258 344 516 688 1032 2064 39239 78478 117717 156956 235434 313912 470868 627824 941736 1687277 1883472 3374554 5061831 6749108 10123662 13498216 20247324 26996432 40494648 80989296