81796758120

Names of 81796758120

• Cardinal: 81796758120 can be written as Eighty-one billion, seven hundred ninety-six million, seven hundred fifty-eight thousand, one hundred twenty.

Scientific notation

• Scientific notation: 8.179675812 × 10¹⁰

Factors of 81796758120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 327897

Divisors of 81796758120

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 20 21 22 24 27 28 30 33 35 36 40 42 44 45 54 55 56 60 63 66 70 72 77 81 84 88 90 99 105 108 110 120 126 132 135 140 154 162 165 168 180 189 198 210 216 220 231 252 264 270 280 297 308 315 324 330 360 378 385 396 405 420 440 462 495 504 540 567 594 616 630 648 660 693 756 770 792 810 840 891 924 945 990 1080 1134 1155 1188 1260 1320 1386 1485 1512 1540 1620 1782 1848 1890 1980 2079 2268 2310 2376 2520 2772 2835 2970 3080 3240 3465 3564 3780 3960 4158 4455 4536 4620 5544 5670 5940 6237 6930 7128 7560 8316 8910 9240 10395 11340 11880 12474 13860 16632 17820 20790 22680 24948 27720 31185 35640 41580 49896 62370 83160 124740 249480 327869 655738 983607 1311476 1639345 1967214 2295083 2622952 2950821 3278690 3606559 3934428 4590166 4918035 5901642 6557380 6885249 7213118 7868856 8852463 9180332 9836070 10819677 11475415 11803284 13114760 13770498 14426236 14754105 17704926 18032795 18360664 19672140 20655747 21639354 22950830 23606568 25245913 26557389 27540996 28852472 29508210 32459031 34426245 35409852 36065590 39344280 41311494 43278708 44262315 45901660 50491826 53114778 54098385 55081992 59016420 61967241 64918062 68852490 70819704 72131180 75737739 82622988 86557416 88524630 91803320 97377093 100983652 103278735 106229556 108196770 118032840 123934482 126229565 129836124 132786945 137704980 144262360 151475478 162295155 165245976 177049260 185901723 194754186 201967304 206557470 212459112 216393540 227213217 247868964 252459130 259672248 265573890 275409960 292131279 302950956 309836205 324590310 354098520 371803446 378688695 389508372 413114940 432787080 454426434 486885465 495737928 504918260 531147780 584262558 605901912 619672410 649180620 681639651 743606892 757377390 779016744 826229880 908852868 929508615 973770930 1009836520 1062295560 1136066085 1168525116 1239344820 1298361240 1363279302 1460656395 1487213784 1514754780 1817705736 1859017230 1947541860 2044918953 2272132170 2337050232 2478689640 2726558604 2921312790 3029509560 3408198255 3718034460 3895083720 4089837906 4544264340 5453117208 5842625580 6816396510 7436068920 8179675812 9088528680 10224594765 11685251160 13632793020 16359351624 20449189530 27265586040 40898379060 81796758120
• Sum of all divisors σ(n): 342768412800
• Sum of proper divisors (its aliquot sum) s(n): 260971654680
• 81796758120 is an abundant number, because the sum of its proper divisors (260971654680) is greater than itself. Its abundance is 179174896560

Bases of 81796758120

• Binary: 1001100001011011101110111101001101000₂
• Hexadecimal: 0x130B777A68
• Base-36: 11KROEI0

Squares and roots of 81796758120

• 81796758120 squared (81796758120²) is 6690709638941785934400
• 81796758120 cubed (81796758120³) is 547278357987673796836934987328000
• The square root of 81796758120 is 286001.3253815443
• The cube root of 81796758120 is 4340.8891642337

Scales and comparisons

• 81,796,758,120 seconds is equal to 2,600 years, 45 weeks, 6 days, 17 hours, 42 minutes.
• To count from 1 to 81,796,758,120 would take you about five thousand, two hundred one 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 81796758120 cubic inches would be around 361.7 feet tall.

Recreational maths with 81796758120

• 81796758120 backwards is 02185769718
• 81796758120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81796758120's digits is 54
• More coming soon!