18280080

Names of 18280080

• Cardinal: 18280080 can be written as Eighteen million, two hundred eighty thousand and eighty.

Scientific notation

• Scientific notation: 1.828008 × 10⁷

Factors of 18280080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 61

Divisors of 18280080

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 31 35 36 39 40 42 45 48 52 54 56 60 62 63 65 70 72 78 80 81 84 90 91 93 104 105 108 112 117 120 124 126 130 135 140 144 155 156 162 168 180 182 186 189 195 208 210 216 217 234 240 248 252 260 270 273 279 280 310 312 315 324 336 351 360 364 372 378 390 403 405 420 432 434 455 465 468 496 504 520 540 546 558 560 567 585 620 624 630 648 651 702 720 728 744 756 780 806 810 819 837 840 868 910 930 936 945 1008 1040 1053 1080 1085 1092 1116 1134 1170 1209 1240 1260 1296 1302 1365 1395 1404 1456 1488 1512 1560 1612 1620 1638 1674 1680 1736 1755 1820 1860 1872 1890 1953 2015 2106 2160 2170 2184 2232 2268 2340 2418 2457 2480 2511 2520 2604 2730 2790 2808 2821 2835 3024 3120 3224 3240 3255 3276 3348 3472 3510 3627 3640 3720 3780 3906 4030 4095 4185 4212 4340 4368 4464 4536 4680 4836 4914 5022 5040 5208 5265 5460 5580 5616 5642 5670 5859 6045 6448 6480 6510 6552 6696 7020 7254 7280 7371 7440 7560 7812 8060 8190 8370 8424 8463 8680 9072 9360 9672 9765 9828 10044 10416 10530 10881 10920 11160 11284 11340 11718 12090 12285 12555 13020 13104 13392 14040 14105 14508 14742 15120 15624 16120 16380 16740 16848 16926 17360 17577 18135 19344 19530 19656 20088 21060 21762 21840 22320 22568 22680 23436 24180 24570 25110 25389 26040 28080 28210 29016 29295 29484 31248 32240 32643 32760 33480 33852 35154 36270 36855 39060 39312 40176 42120 42315 43524 45136 45360 46872 48360 49140 50220 50778 52080 54405 56420 58032 58590 58968 65286 65520 66960 67704 70308 72540 73710 76167 78120 84240 84630 87048 87885 93744 96720 98280 100440 101556 108810 112840 117180 117936 126945 130572 135408 140616 145080 147420 152334 156240 163215 169260 174096 175770 196560 200880 203112 217620 225680 228501 234360 253890 261144 281232 290160 294840 304668 326430 338520 351540 380835 406224 435240 457002 468720 507780 522288 589680 609336 652860 677040 703080 761670 870480 914004 1015560 1142505 1218672 1305720 1406160 1523340 1828008 2031120 2285010 2611440 3046680 3656016 4570020 6093360 9140040 18280080
• Sum of all divisors σ(n): 80661504
• Sum of proper divisors (its aliquot sum) s(n): 62381424
• 18280080 is an abundant number, because the sum of its proper divisors (62381424) is greater than itself. Its abundance is 44101344

Bases of 18280080

• Binary: 1000101101110111010010000₂
• Hexadecimal: 0x116EE90
• Base-36: AVT00

Squares and roots of 18280080

• 18280080 squared (18280080²) is 334161324806400
• 18280080 cubed (18280080³) is 6108495750366976512000
• The square root of 18280080 is 4275.5210208815
• The cube root of 18280080 is 263.4264407535

Scales and comparisons

• 18,280,080 seconds is equal to 30 weeks, 1 day, 13 hours, 48 minutes.
• To count from 1 to 18,280,080 would take you about forty-five weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 18280080 cubic inches would be around 22 feet tall.

Recreational maths with 18280080

• 18280080 backwards is 08008281
• 18280080 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18280080's digits is 27
• More coming soon!