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80280204080 = 2452414163911
BaseRepresentation
bin100101011000100010…
…0101011001100110000
321200012212100220201212
41022301010223030300
52303403213012310
6100514043215252
75541263322056
oct1126104531460
9250185326655
1080280204080
113105709a5aa
1213685817528
1377551c134b
143c580781d6
15214cdbc205
hex12b112b330

80280204080 has 40 divisors (see below), whose sum is σ = 187426006944. Its totient is φ = 31978828800.

The previous prime is 80280204073. The next prime is 80280204091. The reversal of 80280204080 is 8040208208.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×802802040802 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062676 + ... + 2101235.

Almost surely, 280280204080 is an apocalyptic number.

80280204080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80280204080 is an abundant number, since it is smaller than the sum of its proper divisors (107145802864).

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

80280204080 is a wasteful number, since it uses less digits than its factorization.

80280204080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164165 (or 4164159 counting only the distinct ones).

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

The spelling of 80280204080 in words is "eighty billion, two hundred eighty million, two hundred four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 241 482 964 1205 1928 2410 3856 4820 9640 19280 4163911 8327822 16655644 20819555 33311288 41639110 66622576 83278220 166556440 333112880 1003502551 2007005102 4014010204 5017512755 8028020408 10035025510 16056040816 20070051020 40140102040 80280204080