1806400440

Names of 1806400440

• Cardinal: 1806400440 can be written as One billion, eight hundred six million, four hundred thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.80640044 × 10⁹

Factors of 1806400440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3322

Divisors of 1806400440

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 81 90 104 108 117 120 130 135 156 162 169 180 195 216 234 260 270 312 324 338 351 360 390 405 468 507 520 540 585 648 676 702 780 810 845 936 1014 1053 1080 1170 1352 1404 1521 1560 1620 1690 1755 2028 2106 2340 2535 2808 3042 3240 3299 3380 3510 4056 4212 4563 4680 5070 5265 6084 6598 6760 7020 7605 8424 9126 9897 10140 10530 12168 13196 13689 14040 15210 16495 18252 19794 20280 21060 22815 26392 27378 29691 30420 32990 36504 39588 42120 42887 45630 49485 54756 59382 60840 65980 68445 79176 85774 89073 91260 98970 109512 118764 128661 131960 136890 148455 171548 178146 182520 197940 214435 237528 257322 267219 273780 296910 343096 356292 385983 395880 428870 445365 514644 534438 547560 557531 593820 643305 712584 771966 857740 890730 1029288 1068876 1115062 1157949 1187640 1286610 1336095 1543932 1672593 1715480 1781460 1929915 2137752 2230124 2315898 2573220 2672190 2787655 3087864 3345186 3473847 3562920 3859830 4460248 4631796 5017779 5146440 5344380 5575310 5789745 6690372 6947694 7719660 8362965 9263592 10035558 10688760 11150620 11579490 13380744 13895388 15053337 15439320 16725930 17369235 20071116 22301240 23158980 25088895 27790776 30106674 33451860 34738470 40142232 45160011 46317960 50177790 60213348 66903720 69476940 75266685 90320022 100355580 120426696 138953880 150533370 180640044 200711160 225800055 301066740 361280088 451600110 602133480 903200220 1806400440
• Sum of all divisors σ(n): 6576471000
• Sum of proper divisors (its aliquot sum) s(n): 4770070560
• 1806400440 is an abundant number, because the sum of its proper divisors (4770070560) is greater than itself. Its abundance is 2963670120

Bases of 1806400440

• Binary: 1101011101010110111101110111000₂
• Hexadecimal: 0x6BAB7BB8
• Base-36: TVHFI0

Squares and roots of 1806400440

• 1806400440 squared (1806400440²) is 3263082549632193600
• 1806400440 cubed (1806400440³) is 5894433753411916357205184000
• The square root of 1806400440 is 42501.7698455017
• The cube root of 1806400440 is 1217.8804998147

Scales and comparisons

• 1,806,400,440 seconds is equal to 57 years, 22 weeks, 5 days, 9 hours, 54 minutes.
• To count from 1 to 1,806,400,440 would take you about one hundred fourteen 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 1806400440 cubic inches would be around 101.5 feet tall.

Recreational maths with 1806400440

• 1806400440 backwards is 0440046081
• 1806400440 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1806400440's digits is 27
• More coming soon!