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80752326018 = 23713197998533
BaseRepresentation
bin100101100110100110…
…1101011010110000010
321201102202202012021120
41023031031223112002
52310340043413033
6101032550333110
75556055305630
oct1131515532602
9251382665246
1080752326018
1131279645821
121379795a196
1377cbc65240
143ca0a54350
15217957a1b3
hex12cd36b582

80752326018 has 128 divisors (see below), whose sum is σ = 211887513600. Its totient is φ = 19920805632.

The previous prime is 80752326001. The next prime is 80752326071. The reversal of 80752326018 is 81062325708.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 770280 + ... + 868812.

It is an arithmetic number, because the mean of its divisors is an integer number (1655371200).

Almost surely, 280752326018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80752326018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105943756800).

80752326018 is an abundant number, since it is smaller than the sum of its proper divisors (131135187582).

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

80752326018 is a wasteful number, since it uses less digits than its factorization.

80752326018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98656.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 80752326018 in words is "eighty billion, seven hundred fifty-two million, three hundred twenty-six thousand, eighteen".

Divisors: 1 2 3 6 7 13 14 19 21 26 38 39 42 57 78 79 91 114 133 158 182 237 247 266 273 399 474 494 546 553 741 798 1027 1106 1482 1501 1659 1729 2054 3002 3081 3318 3458 4503 5187 6162 7189 9006 10374 10507 14378 19513 21014 21567 31521 39026 43134 58539 63042 98533 117078 136591 197066 273182 295599 409773 591198 689731 819546 1280929 1379462 1872127 2069193 2561858 3744254 3842787 4138386 5616381 7685574 7784107 8966503 11232762 13104889 15568214 17933006 23352321 24337651 26209778 26899509 39314667 46704642 48675302 53799018 54488749 73012953 78629334 101193391 108977498 146025906 147898033 163466247 170363557 202386782 295796066 303580173 326932494 340727114 443694099 511090671 607160346 708353737 887388198 1022181342 1035286231 1416707474 1922674429 2070572462 2125061211 3105858693 3845348858 4250122422 5768023287 6211717386 11536046574 13458721003 26917442006 40376163009 80752326018