820993778220

Names of 820993778220

• Cardinal: 820993778220 can be written as Eight hundred twenty billion, nine hundred ninety-three million, seven hundred seventy-eight thousand, two hundred twenty.

Scientific notation

• Scientific notation: 8.2099377822 × 10¹¹

Factors of 820993778220

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 18039

Divisors of 820993778220

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 17 20 21 22 28 30 33 34 35 42 44 51 55 60 66 68 70 77 84 85 102 105 110 119 132 140 154 165 170 187 204 210 220 231 238 255 308 330 340 357 374 385 420 462 476 510 561 595 601 660 714 748 770 924 935 1020 1122 1155 1190 1202 1309 1428 1540 1785 1803 1870 2244 2310 2380 2404 2618 2805 3005 3570 3606 3740 3927 4207 4620 5236 5610 6010 6545 6611 7140 7212 7854 8414 9015 10217 11220 12020 12621 13090 13222 15708 16828 17393 18030 19635 19833 20434 21035 25242 26180 26444 30651 33055 34786 36060 39270 39666 40868 42070 46277 50484 51085 52179 61302 63105 66110 69572 71519 78540 79332 84140 86965 92554 99165 102170 104358 112387 121751 122604 126210 132220 138831 143038 153255 173930 185108 191323 198330 204340 208716 214557 224774 231385 243502 252420 260895 277662 286076 295681 306510 337161 347860 357595 365253 382646 396660 429114 449548 462770 487004 521790 555324 561935 573969 591362 608755 613020 674322 694155 715190 730506 765292 786709 858228 887043 925540 956615 1043580 1072785 1123870 1147938 1182724 1217510 1339261 1348644 1388310 1430380 1461012 1478405 1573418 1685805 1774086 1826265 1913230 2069767 2145570 2247740 2295876 2360127 2435020 2678522 2776620 2869845 2956810 3146836 3252491 3371610 3548172 3652530 3826460 3933545 4017783 4139534 4291140 4435215 4720254 5357044 5739690 5913620 6209301 6504982 6696305 6743220 7305060 7867090 8035566 8279068 8870430 9440508 9757473 10348835 10453193 11479380 11800635 12418602 13009964 13392610 15734180 16071132 16262455 17740860 19514946 20088915 20697670 20906386 22767437 23601270 24837204 26785220 31046505 31359579 32524910 39029892 40177830 41395340 41812772 45534874 47202540 48787365 52265965 62093010 62719158 65049820 68302311 73172351 80355660 91069748 97574730 104531930 113837185 114985123 124186020 125438316 136604622 146344702 156797895 177704281 195149460 209063860 219517053 227674370 229970246 273209244 292689404 313595790 341511555 344955369 355408562 365861755 439034106 455348740 459940492 533112843 574925615 627191580 683023110 689910738 710817124 731723510 804895861 878068212 888521405 1066225686 1097585265 1149851230 1243929967 1366046220 1379821476 1463447020 1609791722 1724776845 1777042810 1954747091 2132451372 2195170530 2299702460 2414687583 2487859934 2665564215 3219583444 3449553690 3554085620 3731789901 3909494182 4024479305 4390341060 4829375166 4975719868 5331128430 5864241273 6219649835 6899107380 7463579802 7818988364 8048958610 9658750332 9773735455 10662256860 11728482546 12073437915 12439299670 13683229637 14927159604 16097917220 18658949505 19547470910 23456965092 24146875830 24878599340 27366459274 29321206365 37317899010 39094941820 41049688911 48293751660 54732918548 58642412730 68416148185 74635798020 82099377822 117284825460 136832296370 164198755644 205248444555 273664592740 410496889110 820993778220
• Sum of all divisors σ(n): 3039827761152
• Sum of proper divisors (its aliquot sum) s(n): 2218833982932
• 820993778220 is an abundant number, because the sum of its proper divisors (2218833982932) is greater than itself. Its abundance is 1397840204712

Bases of 820993778220

• Binary: 1011111100100111000010101110001000101100₂
• Hexadecimal: 0xBF270AE22C
• Base-36: AH5QHXKC

Squares and roots of 820993778220

• 820993778220 squared (820993778220²) is 674030783875950546368400
• 820993778220 cubed (820993778220³) is 553375079890904894856866016016248000
• The square root of 820993778220 is 906087.0698889815
• The cube root of 820993778220 is 9363.6812618659

Scales and comparisons

• 820,993,778,220 seconds is equal to 26,105 years, 3 weeks, 1 day, 19 hours, 17 minutes.
• To count from 1 to 820,993,778,220 would take you about fifty-two thousand, two hundred ten 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 820993778220 cubic inches would be around 780.3 feet tall.

Recreational maths with 820993778220

• 820993778220 backwards is 022877399028
• The number of decimal digits it has is: 12
• The sum of 820993778220's digits is 57
• More coming soon!