18130818720

Names of 18130818720

• Cardinal: 18130818720 can be written as Eighteen billion, one hundred thirty million, eight hundred eighteen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.813081872 × 10¹⁰

Factors of 18130818720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 174115

Divisors of 18130818720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 31 32 35 40 42 48 56 60 62 70 80 84 93 96 105 112 120 124 140 155 160 168 186 210 217 224 240 248 280 310 336 372 420 434 465 480 496 560 620 651 672 744 840 868 930 992 1085 1120 1240 1302 1488 1680 1736 1860 2170 2480 2604 2976 3255 3360 3472 3720 4340 4960 5208 6510 6944 7440 8680 10416 13020 14880 17360 20832 26040 34720 52080 104160 174067 348134 522201 696268 870335 1044402 1218469 1392536 1740670 2088804 2436938 2611005 2785072 3481340 3655407 4177608 4873876 5222010 5396077 5570144 6092345 6962680 7310814 8355216 9747752 10444020 10792154 12184690 13925360 14621628 16188231 16710432 18277035 19495504 20888040 21584308 24369380 26980385 27850720 29243256 32376462 36554070 37772539 38991008 41776080 43168616 48738760 53960770 58486512 64752924 73108140 75545078 80941155 83552160 86337232 97477520 107921540 113317617 116973024 129505848 146216280 151090156 161882310 172674464 188862695 194955040 215843080 226635234 259011696 292432560 302180312 323764620 377725390 431686160 453270468 518023392 566588085 584865120 604360624 647529240 755450780 863372320 906540936 1133176170 1208721248 1295058480 1510901560 1813081872 2266352340 2590116960 3021803120 3626163744 4532704680 6043606240 9065409360 18130818720
• Sum of all divisors σ(n): 67376848896
• Sum of proper divisors (its aliquot sum) s(n): 49246030176
• 18130818720 is an abundant number, because the sum of its proper divisors (49246030176) is greater than itself. Its abundance is 31115211456

Bases of 18130818720

• Binary: 10000111000101011100101011010100000₂
• Hexadecimal: 0x438AE56A0
• Base-36: 8BUMD9C

Squares and roots of 18130818720

• 18130818720 squared (18130818720²) is 328726587457502438400
• 18130818720 cubed (18130818720³) is 5960082165636202414588366848000
• The square root of 18130818720 is 134650.7286278095
• The cube root of 18130818720 is 2627.0750018665

Scales and comparisons

• 18,130,818,720 seconds is equal to 576 years, 26 weeks, 1 day, 10 hours, 32 minutes.
• To count from 1 to 18,130,818,720 would take you about one thousand, one hundred fifty-three 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 18130818720 cubic inches would be around 218.9 feet tall.

Recreational maths with 18130818720

• 18130818720 backwards is 02781803181
• The number of decimal digits it has is: 11
• The sum of 18130818720's digits is 39
• More coming soon!