85130640

Names of 85130640

• Cardinal: 85130640 can be written as Eighty-five million, one hundred thirty thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.513064 × 10⁷

Factors of 85130640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 163

Divisors of 85130640

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 19 20 21 24 28 30 35 36 38 40 42 45 48 49 56 57 60 63 70 72 76 80 84 90 95 98 105 112 114 120 126 127 133 140 144 147 152 168 171 180 190 196 210 228 240 245 252 254 266 280 285 294 304 315 336 342 360 380 381 392 399 420 441 456 490 504 508 532 560 570 588 630 635 665 684 720 735 760 762 784 798 840 855 882 889 912 931 980 1008 1016 1064 1140 1143 1176 1197 1260 1270 1330 1368 1470 1520 1524 1596 1680 1710 1764 1778 1862 1905 1960 1995 2032 2128 2205 2280 2286 2352 2394 2413 2520 2540 2660 2667 2736 2793 2940 3048 3192 3420 3528 3556 3724 3810 3920 3990 4410 4445 4560 4572 4655 4788 4826 5040 5080 5320 5334 5586 5715 5880 5985 6096 6223 6384 6840 7056 7112 7239 7448 7620 7980 8001 8379 8820 8890 9144 9310 9576 9652 10160 10640 10668 11172 11430 11760 11970 12065 12446 13335 13680 13965 14224 14478 14896 15240 15960 16002 16758 16891 17640 17780 18288 18620 18669 19152 19304 21336 21717 22344 22860 23940 24130 24892 26670 27930 28956 30480 31115 31920 32004 33516 33782 35280 35560 36195 37240 37338 38608 40005 41895 42672 43434 44688 45720 47880 48260 49784 50673 53340 55860 56007 57912 62230 64008 67032 67564 71120 72390 74480 74676 80010 83790 84455 86868 91440 93345 95760 96520 99568 101346 106680 108585 111720 112014 115824 118237 124460 128016 134064 135128 144780 149352 152019 160020 167580 168910 173736 186690 193040 202692 213360 217170 223440 224028 236474 248920 253365 270256 280035 289560 298704 304038 320040 335160 337820 347472 354711 373380 405384 434340 448056 472948 497840 506730 560070 579120 591185 608076 640080 670320 675640 709422 746760 760095 810768 868680 896112 945896 1013460 1064133 1120140 1182370 1216152 1351280 1418844 1493520 1520190 1737360 1773555 1891792 2026920 2128266 2240280 2364740 2432304 2837688 3040380 3547110 4053840 4256532 4480560 4729480 5320665 5675376 6080760 7094220 8513064 9458960 10641330 12161520 14188440 17026128 21282660 28376880 42565320 85130640
• Sum of all divisors σ(n): 352834560
• Sum of proper divisors (its aliquot sum) s(n): 267703920
• 85130640 is an abundant number, because the sum of its proper divisors (267703920) is greater than itself. Its abundance is 182573280

Bases of 85130640

• Binary: 101000100101111110110010000₂
• Hexadecimal: 0x512FD90
• Base-36: 1EON80

Squares and roots of 85130640

• 85130640 squared (85130640²) is 7247225866809600
• 85130640 cubed (85130640³) is 616960976266056006144000
• The square root of 85130640 is 9226.6266858479
• The cube root of 85130640 is 439.9081075317

Scales and comparisons

• 85,130,640 seconds is equal to 2 years, 36 weeks, 5 days, 7 hours, 24 minutes.
• To count from 1 to 85,130,640 would take you about four years!

  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 85130640 cubic inches would be around 36.7 feet tall.

Recreational maths with 85130640

• 85130640 backwards is 04603158
• The number of decimal digits it has is: 8
• The sum of 85130640's digits is 27
• More coming soon!