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80880440000 = 26542022011
BaseRepresentation
bin100101101010011011…
…0011001001011000000
321201202200211001121212
41023110312121023000
52311120343040000
6101053404305252
75562202253033
oct1132466311300
9251680731555
1080880440000
1131334999748
1213812842228
13781c670429
143cb3a8301a
152185934c35
hex12d4d992c0

80880440000 has 70 divisors (see below), whose sum is σ = 200557304244. Its totient is φ = 32352160000.

The previous prime is 80880439999. The next prime is 80880440023. The reversal of 80880440000 is 4408808.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 971006 + ... + 1051005.

Almost surely, 280880440000 is an apocalyptic number.

80880440000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80880440000 is an abundant number, since it is smaller than the sum of its proper divisors (119676864244).

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

80880440000 is an equidigital number, since it uses as much as digits as its factorization.

80880440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022043 (or 2022018 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

Adding to 80880440000 its reverse (4408808), we get a palindrome (80884848808).

The spelling of 80880440000 in words is "eighty billion, eight hundred eighty million, four hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 4000 5000 8000 10000 20000 40000 2022011 4044022 8088044 10110055 16176088 20220110 32352176 40440220 50550275 64704352 80880440 101100550 129408704 161760880 202201100 252751375 323521760 404402200 505502750 647043520 808804400 1011005500 1263756875 1617608800 2022011000 2527513750 3235217600 4044022000 5055027500 8088044000 10110055000 16176088000 20220110000 40440220000 80880440000