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80067695280 = 24353150921143
BaseRepresentation
bin100101010010001101…
…0000001001010110000
321122200001111100110120
41022210122001022300
52302434312222110
6100441012330240
75533103115636
oct1124432011260
9248601440416
1080067695280
1130a581435a1
1213626613980
1377201775b1
143c37b5b356
1521393e1870
hex12a46812b0

80067695280 has 160 divisors (see below), whose sum is σ = 256732139520. Its totient is φ = 20621061120.

The previous prime is 80067695171. The next prime is 80067695317. The reversal of 80067695280 is 8259676008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3776389 + ... + 3797531.

It is an arithmetic number, because the mean of its divisors is an integer number (1604575872).

Almost surely, 280067695280 is an apocalyptic number.

80067695280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80067695280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128366069760).

80067695280 is an abundant number, since it is smaller than the sum of its proper divisors (176664444240).

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

80067695280 is a wasteful number, since it uses less digits than its factorization.

80067695280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21699 (or 21693 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 80067695280 in words is "eighty billion, sixty-seven million, six hundred ninety-five thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 465 496 509 620 744 930 1018 1240 1488 1527 1860 2036 2480 2545 3054 3720 4072 5090 6108 7440 7635 8144 10180 12216 15270 15779 20360 21143 24432 30540 31558 40720 42286 47337 61080 63116 63429 78895 84572 94674 105715 122160 126232 126858 157790 169144 189348 211430 236685 252464 253716 315580 317145 338288 378696 422860 473370 507432 631160 634290 655433 757392 845720 946740 1014864 1262320 1268580 1310866 1691440 1893480 1966299 2537160 2621732 3277165 3786960 3932598 5074320 5243464 6554330 7865196 9831495 10486928 10761787 13108660 15730392 19662990 21523574 26217320 31460784 32285361 39325980 43047148 52434640 53808935 64570722 78651960 86094296 107617870 129141444 157303920 161426805 172188592 215235740 258282888 322853610 333615397 430471480 516565776 645707220 667230794 860942960 1000846191 1291414440 1334461588 1668076985 2001692382 2582828880 2668923176 3336153970 4003384764 5004230955 5337846352 6672307940 8006769528 10008461910 13344615880 16013539056 20016923820 26689231760 40033847640 80067695280