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80101100000 = 2555801011
BaseRepresentation
bin100101010011001100…
…1011100100111100000
321122202101100111010102
41022212121130213200
52303021340200000
6100444204321532
75533660054535
oct1124631344740
9248671314112
1080101100000
1130a74a89aa9
12136358432a8
1377270721bc
143c3c374d8c
15213c2de3d5
hex12a665c9e0

80101100000 has 72 divisors (see below), whose sum is σ = 197111430936. Its totient is φ = 32040400000.

The previous prime is 80101099961. The next prime is 80101100059. The reversal of 80101100000 is 110108.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 300506 + ... + 500505.

It is an arithmetic number, because the mean of its divisors is an integer number (2737658763).

Almost surely, 280101100000 is an apocalyptic number.

80101100000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80101100000 is an abundant number, since it is smaller than the sum of its proper divisors (117010330936).

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

80101100000 is an frugal number, since it uses more digits than its factorization.

80101100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801046 (or 801018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 80101100000 its reverse (110108), we get a palindrome (80101210108).

The spelling of 80101100000 in words is "eighty billion, one hundred one million, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 3125 4000 5000 6250 10000 12500 20000 25000 50000 100000 801011 1602022 3204044 4005055 6408088 8010110 12816176 16020220 20025275 25632352 32040440 40050550 64080880 80101100 100126375 128161760 160202200 200252750 320404400 400505500 500631875 640808800 801011000 1001263750 1602022000 2002527500 2503159375 3204044000 4005055000 5006318750 8010110000 10012637500 16020220000 20025275000 40050550000 80101100000