21689896813797920

Names of 21689896813797920

• Cardinal: 21689896813797920 can be written as Twenty-one quadrillion, six hundred eighty-nine trillion, eight hundred ninety-six billion, eight hundred thirteen million, seven hundred ninety-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.168989681379792 × 10¹⁶

Factors of 21689896813797920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 6333

Divisors of 21689896813797920

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 61 76 80 95 122 152 160 190 244 304 305 361 380 488 608 610 722 760 976 1093 1159 1220 1444 1520 1805 1952 2186 2318 2440 2888 3040 3610 4372 4636 4880 5153 5465 5776 5795 7220 8744 9272 9760 10306 10930 11552 11590 14440 17488 18544 20612 20767 21860 22021 23180 25765 28880 34976 37088 41224 41534 43720 44042 46360 51530 57760 66673 82448 83068 87440 88084 92720 97907 103060 103835 110105 133346 164896 166136 174880 176168 185440 195814 206120 207670 220210 266692 314333 332272 333365 352336 391628 394573 412240 415340 440420 489535 533384 628666 664544 666730 704672 783256 789146 824480 830680 880840 979070 1066768 1194649 1257332 1266787 1333460 1566512 1571665 1578292 1661360 1761680 1860233 1958140 1972865 2133536 2389298 2514664 2533574 2666920 3133024 3143330 3156584 3322720 3523360 3720466 3916280 3945730 4778596 5029328 5067148 5333840 5632229 5972327 5973245 6286660 6313168 6333935 7440932 7832560 7891460 9301165 9557192 10058656 10134296 10667680 11264458 11944654 11946490 12573320 12626336 12667870 14881864 15665120 15782920 18602330 19114384 20268592 22528916 22698331 23889308 23892980 24068953 25146640 25335740 28161145 29763728 29861635 31565840 37204660 38228768 40537184 45057832 45396662 47778616 47785960 48137906 50293280 50671480 56322290 59527456 59723270 63131680 72873589 74409320 90115664 90793324 95557232 95571920 96275812 101342960 107012351 112644580 113474213 113491655 119446540 120344765 145747178 148818640 180231328 181586648 191114464 191143840 192551624 202685920 214024702 225289160 226948426 226983310 238893080 240689530 291494356 297637280 343565969 363173296 364367945 385103248 428049404 431268289 450578320 453896852 453966620 477786160 481379060 535061755 567371065 582988712 687131938 726346592 728735890 770206496 856098808 862536578 901156640 907793704 907933240 955572320 962758120 1070123510 1134742130 1165977424 1374263876 1384598191 1457471780 1712197616 1717829845 1725073156 1815587408 1815866480 1925516240 2033234669 2140247020 2156341445 2269484260 2331954848 2748527752 2769196382 2914943560 3424395232 3435659690 3450146312 3631174816 3631732960 3851032480 4066469338 4280494040 4312682890 4538968520 5497055504 5538392764 5829887120 6156026297 6527753411 6871319380 6900292624 6922990955 8132938676 8560988080 8625365780 9077937040 10166173345 10994111008 11076785528 11659774240 12312052594 13055506822 13742638760 13800585248 13845981910 16265877352 17121976160 17250731560 18155874080 20332346690 22153571056 24624105188 26111013644 26307365629 27485277520 27691963820 30780131485 32531754704 32638767055 34501463120 40664693380 44307142112 49248210376 52222027288 52614731258 54970555040 55383927640 61560262970 65063509408 65277534110 69002926240 81329386760 98496420752 104444054576 105229462516 110767855280 116964499643 123120525940 124027314809 130555068220 131536828145 162658773520 196992841504 208888109152 210458925032 221535710560 233928999286 246241051880 248054629618 261110136440 263073656290 325317547040 375517604117 420917850064 467857998572 492482103760 496109259236 522220272880 526147312580 584822498215 620136574045 751035208234 841835700128 935715997144 984964207520 992218518472 1044440545760 1052294625160 1169644996430 1240273148090 1502070416468 1871431994288 1877588020585 1984437036944 2104589250320 2222325493217 2339289992860 2480546296180 3004140832936 3742863988576 3755176041170 3968874073888 4209178500640 4444650986434 4678579985720 4961092592360 6008281665872 7134834478223 7510352082340 8889301972868 9357159971440 9922185184720 11111627466085 12016563331744 14269668956446 15020704164680 17778603945736 18714319942880 19844370369440 22223254932170 28539337912892 30041408329360 35557207891472 35674172391115 44446509864340 57078675825784 60082816658720 71114415782944 71348344782230 88893019728680 114157351651568 135561855086237 142696689564460 177786039457360 228314703303136 271123710172474 285393379128920 355572078914720 542247420344948 570786758257840 677809275431185 1084494840689896 1141573516515680 1355618550862370 2168989681379792 2711237101724740 4337979362759584 5422474203449480 10844948406898960 21689896813797920
• Sum of all divisors σ(n): 55028886670730952
• Sum of proper divisors (its aliquot sum) s(n): 33338989856933032
• 21689896813797920 is an abundant number, because the sum of its proper divisors (33338989856933032) is greater than itself. Its abundance is 11649093043135112

Bases of 21689896813797920

• Binary: 1001101000011101101100010100010110011010010001000100000₂
• Hexadecimal: 0x4D0ED8A2CD2220
• Base-36: 5XKFD1EE80W

Squares and roots of 21689896813797920

• 21689896813797920 squared (21689896813797920²) is 470451623793201161899694596326400
• 21689896813797920 cubed (21689896813797920³) is 10204047175958211612213153921636309180063961088000
• The square root of 21689896813797920 is 147274902.1856674669
• The cube root of 21689896813797920 is 278881.1508620275

Scales and comparisons

• 21,689,896,813,797,920 seconds is equal to 689,671,627 years, 21 weeks, 6 days, 22 hours, 5 minutes, 20 seconds.
• To count from 1 to 21,689,896,813,797,920 would take you about two billion, sixty-nine million, fourteen thousand, eight hundred eighty-two 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 21689896813797920 cubic inches would be around 23240.1 feet tall.

Recreational maths with 21689896813797920

• 21689896813797920 backwards is 02979731869898612
• 21689896813797920 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21689896813797920's digits is 95
• More coming soon!