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80239403519 = 11192233494933
BaseRepresentation
bin100101010111010100…
…1000010000111111111
321200010000121000212222
41022232221002013333
52303312241403034
6100510024515555
75540256451022
oct1125651020777
9250100530788
1080239403519
1131036062530
121367401bbbb
1377499072c2
143c528971b9
15214950d12e
hex12aea421ff

80239403519 has 32 divisors (see below), whose sum is σ = 92838144000. Its totient is φ = 68584786560.

The previous prime is 80239403467. The next prime is 80239403527. The reversal of 80239403519 is 91530493208.

It is a cyclic number.

It is not a de Polignac number, because 80239403519 - 212 = 80239399423 is a prime.

It is a super-2 number, since 2×802394035192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80239403519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80239403539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16263377 + ... + 16268309.

It is an arithmetic number, because the mean of its divisors is an integer number (2901192000).

Almost surely, 280239403519 is an apocalyptic number.

80239403519 is a deficient number, since it is larger than the sum of its proper divisors (12598740481).

80239403519 is a wasteful number, since it uses less digits than its factorization.

80239403519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 80239403519 in words is "eighty billion, two hundred thirty-nine million, four hundred three thousand, five hundred nineteen".

Divisors: 1 11 19 209 223 349 2453 3839 4237 4933 6631 46607 54263 72941 77827 93727 856097 1030997 1100059 1478713 1721617 12100649 16265843 18937787 20901121 32710723 229912331 359817953 383920591 4223126501 7294491229 80239403519