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80852800800 = 25352241139787
BaseRepresentation
bin100101101001100110…
…0111101010100100000
321201200202210211202210
41023103030331110200
52311041304111200
6101050540042120
75561415316212
oct1132314752440
9251622724683
1080852800800
1131320330a32
1213805533340
137816a13b85
143cb012a5b2
1521832c5650
hex12d333d520

80852800800 has 144 divisors (see below), whose sum is σ = 264269773152. Its totient is φ = 21471129600.

The previous prime is 80852800789. The next prime is 80852800801. The reversal of 80852800800 is 800825808.

It is not an unprimeable number, because it can be changed into a prime (80852800801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508507 + ... + 648293.

It is an arithmetic number, because the mean of its divisors is an integer number (1835206758).

Almost surely, 280852800800 is an apocalyptic number.

80852800800 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 80852800800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132134886576).

80852800800 is an abundant number, since it is smaller than the sum of its proper divisors (183416972352).

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

80852800800 is a wasteful number, since it uses less digits than its factorization.

80852800800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140051 (or 140038 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The spelling of 80852800800 in words is "eighty billion, eight hundred fifty-two million, eight hundred thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 241 300 400 480 482 600 723 800 964 1200 1205 1446 1928 2400 2410 2892 3615 3856 4820 5784 6025 7230 7712 9640 11568 12050 14460 18075 19280 23136 24100 28920 36150 38560 48200 57840 72300 96400 115680 139787 144600 192800 279574 289200 419361 559148 578400 698935 838722 1118296 1397870 1677444 2096805 2236592 2795740 3354888 3494675 4193610 4473184 5591480 6709776 6989350 8387220 10484025 11182960 13419552 13978700 16774440 20968050 22365920 27957400 33548880 33688667 41936100 55914800 67097760 67377334 83872200 101066001 111829600 134754668 167744400 168443335 202132002 269509336 335488800 336886670 404264004 505330005 539018672 673773340 808528008 842216675 1010660010 1078037344 1347546680 1617056016 1684433350 2021320020 2526650025 2695093360 3234112032 3368866700 4042640040 5053300050 5390186720 6737733400 8085280080 10106600100 13475466800 16170560160 20213200200 26950933600 40426400400 80852800800