81363470400

Names of 81363470400

• Cardinal: 81363470400 can be written as Eighty-one billion, three hundred sixty-three million, four hundred seventy thousand, four hundred.

Scientific notation

• Scientific notation: 8.13634704 × 10¹⁰

Factors of 81363470400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 13852

Divisors of 81363470400

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 144 150 160 180 192 200 225 240 288 300 320 360 400 421 450 480 576 600 720 800 842 900 960 1200 1263 1440 1600 1684 1800 2105 2400 2526 2880 3368 3600 3789 4210 4800 5052 6315 6736 7200 7578 8420 10104 10525 12630 13421 13472 14400 15156 16840 18945 20208 21050 25260 26842 26944 30312 31575 33680 37890 40263 40416 42100 50520 53684 60624 63150 67105 67360 75780 80526 80832 84200 94725 101040 107368 120789 121248 126300 134210 134720 151560 161052 168400 189450 201315 202080 214736 241578 242496 252600 268420 303120 322104 335525 336800 378900 402630 404160 429472 483156 505200 536840 603945 606240 644208 671050 673600 757800 805260 858944 966312 1006575 1010400 1073680 1207890 1212480 1288416 1342100 1515600 1610520 1932624 2013150 2020800 2147360 2415780 2576832 2684200 3019725 3031200 3221040 3865248 4026300 4294720 4831560 5368400 5650241 6039450 6062400 6442080 7730496 8052600 9663120 10736800 11300482 12078900 12884160 16105200 16950723 19326240 21473600 22600964 24157800 28251205 32210400 33901446 38652480 45201928 48315600 50852169 56502410 64420800 67802892 84753615 90403856 96631200 101704338 113004820 135605784 141256025 169507230 180807712 193262400 203408676 226009640 254260845 271211568 282512050 339014460 361615424 406817352 423768075 452019280 508521690 542423136 565024100 678028920 813634704 847536150 904038560 1017043380 1084846272 1130048200 1271304225 1356057840 1627269408 1695072300 1808077120 2034086760 2260096400 2542608450 2712115680 3254538816 3390144600 4068173520 4520192800 5085216900 5424231360 6780289200 8136347040 9040385600 10170433800 13560578400 16272694080 20340867600 27121156800 40681735200 81363470400
• Sum of all divisors σ(n): 289893483204
• Sum of proper divisors (its aliquot sum) s(n): 208530012804
• 81363470400 is an abundant number, because the sum of its proper divisors (208530012804) is greater than itself. Its abundance is 127166542404

Bases of 81363470400

• Binary: 1001011110001101001000000100001000000₂
• Hexadecimal: 0x12F1A40840
• Base-36: 11DLPJK0

Squares and roots of 81363470400

• 81363470400 squared (81363470400²) is 6620014315531676160000
• 81363470400 cubed (81363470400³) is 538627338809337793506545664000000
• The square root of 81363470400 is 285242.8270789645
• The cube root of 81363470400 is 4333.2108451899

Scales and comparisons

• 81,363,470,400 seconds is equal to 2,587 years, 5 weeks, 3 days, 20 hours.
• To count from 1 to 81,363,470,400 would take you about five thousand, one hundred seventy-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 81363470400 cubic inches would be around 361.1 feet tall.

Recreational maths with 81363470400

• 81363470400 backwards is 00407436318
• 81363470400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81363470400's digits is 36
• More coming soon!