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80758964800 = 2652269187637
BaseRepresentation
bin100101100110110011…
…1000000001001000000
321201110020020110222101
41023031213000021000
52310343243333200
6101033344520144
75556165605653
oct1131547001100
9251406213871
1080758964800
113128236a618
121379a020054
13780044ac07
143ca18a189a
152179e3c26a
hex12cd9c0240

80758964800 has 84 divisors (see below), whose sum is σ = 199457317620. Its totient is φ = 32183326720.

The previous prime is 80758964791. The next prime is 80758964813. The reversal of 80758964800 is 846985708.

It can be written as a sum of positive squares in 6 ways, for example, as 10466108416 + 70292856384 = 102304^2 + 265128^2 .

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 11 ways as a sum of consecutive naturals, for example, 336582 + ... + 524218.

Almost surely, 280758964800 is an apocalyptic number.

80758964800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80758964800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99728658810).

80758964800 is an abundant number, since it is smaller than the sum of its proper divisors (118698352820).

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

80758964800 is a wasteful number, since it uses less digits than its factorization.

80758964800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187928 (or 187913 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 80758964800 in words is "eighty billion, seven hundred fifty-eight million, nine hundred sixty-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 269 320 400 538 800 1076 1345 1600 2152 2690 4304 5380 6725 8608 10760 13450 17216 21520 26900 43040 53800 86080 107600 187637 215200 375274 430400 750548 938185 1501096 1876370 3002192 3752740 4690925 6004384 7505480 9381850 12008768 15010960 18763700 30021920 37527400 50474353 60043840 75054800 100948706 150109600 201897412 252371765 300219200 403794824 504743530 807589648 1009487060 1261858825 1615179296 2018974120 2523717650 3230358592 4037948240 5047435300 8075896480 10094870600 16151792960 20189741200 40379482400 80758964800