21432068640

Names of 21432068640

• Cardinal: 21432068640 can be written as Twenty-one billion, four hundred thirty-two million, sixty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.143206864 × 10¹⁰

Factors of 21432068640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1209

Divisors of 21432068640

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 32 34 36 40 45 48 51 54 60 68 72 80 81 85 89 90 96 102 108 120 135 136 144 153 160 162 170 178 180 204 216 240 255 267 270 272 288 306 324 340 356 360 405 408 432 445 459 480 510 534 540 544 612 648 680 712 720 765 801 810 816 864 890 918 1020 1068 1080 1093 1224 1296 1335 1360 1377 1424 1440 1513 1530 1602 1620 1632 1780 1836 2040 2136 2160 2186 2295 2403 2448 2592 2670 2720 2754 2848 3026 3060 3204 3240 3279 3560 3672 4005 4080 4272 4320 4372 4539 4590 4806 4896 5340 5465 5508 6052 6120 6408 6480 6558 6885 7120 7209 7344 7565 8010 8160 8544 8744 9078 9180 9612 9837 10680 10930 11016 12015 12104 12240 12816 12960 13116 13617 13770 14240 14418 14688 15130 16020 16395 17488 18156 18360 18581 19224 19674 21360 21860 22032 22695 24030 24208 24480 25632 26232 27234 27540 28836 29511 30260 32040 32790 34976 36045 36312 36720 37162 38448 39348 40851 42720 43720 44064 45390 48060 48416 49185 52464 54468 55080 55743 57672 59022 60520 64080 65580 68085 72090 72624 73440 74324 76896 78696 81702 87440 88533 90780 92905 96120 97277 98370 104928 108936 110160 111486 115344 118044 121040 122553 128160 131160 136170 144180 145248 147555 148648 157392 163404 167229 174880 177066 181560 185810 192240 194554 196740 204255 217872 220320 222972 230688 236088 242080 245106 262320 272340 278715 288360 291831 295110 297296 314784 326808 334458 354132 363120 371620 384480 389108 393480 408510 435744 442665 445944 472176 486385 490212 501687 524640 544680 557430 576720 583662 590220 594592 612765 653616 668916 708264 726240 743240 778216 786960 817020 836145 875493 885330 891888 944352 972770 980424 1003374 1089360 1114860 1153440 1167324 1180440 1225530 1307232 1337832 1416528 1459155 1486480 1505061 1556432 1573920 1634040 1653709 1672290 1750986 1770660 1783776 1945540 1960848 2006748 2178720 2229720 2334648 2360880 2451060 2508435 2626479 2675664 2833056 2918310 2972960 3010122 3112864 3268080 3307418 3344580 3501972 3541320 3891080 3921696 4013496 4377465 4459440 4669296 4721760 4902120 4961127 5016870 5252958 5351328 5836620 6020244 6536160 6614836 6689160 7003944 7082640 7525305 7782160 7879437 8026992 8268545 8754930 8918880 9338592 9804240 9922254 10033740 10505916 11673240 12040488 13132395 13229672 13378320 14007888 14165280 14883381 15050610 15564320 15758874 16053984 16537090 17509860 19608480 19844508 20067480 21011832 23346480 24080976 24805635 26264790 26459344 26756640 28015776 29766762 30101220 31517748 33074180 35019720 39397185 39689016 40134960 42023664 44650143 46692960 48161952 49611270 52529580 52918688 59533524 60202440 63035496 66148360 70039440 74416905 78794370 79378032 80269920 84047328 89300286 99222540 105059160 119067048 120404880 126070992 132296720 133950429 140078880 148833810 157588740 158756064 178600572 198445080 210118320 223250715 238134096 240809760 252141984 264593440 267900858 297667620 315177480 357201144 396890160 420236640 446501430 476268192 535801716 595335240 630354960 669752145 714402288 793780320 893002860 1071603432 1190670480 1260709920 1339504290 1428804576 1786005720 2143206864 2381340960 2679008580 3572011440 4286413728 5358017160 7144022880 10716034320 21432068640
• Sum of all divisors σ(n): 81060542640
• Sum of proper divisors (its aliquot sum) s(n): 59628474000
• 21432068640 is an abundant number, because the sum of its proper divisors (59628474000) is greater than itself. Its abundance is 38196405360

Bases of 21432068640

• Binary: 10011111101011100110110101000100000₂
• Hexadecimal: 0x4FD736A20
• Base-36: 9UG3M00

Squares and roots of 21432068640

• 21432068640 squared (21432068640²) is 459333566189671449600
• 21432068640 cubed (21432068640³) is 9844468519233021766875500544000
• The square root of 21432068640 is 146396.9557060529
• The cube root of 21432068640 is 2777.7172157795

Scales and comparisons

• 21,432,068,640 seconds is equal to 681 years, 24 weeks, 4 days, 8 hours, 24 minutes.
• To count from 1 to 21,432,068,640 would take you about one thousand, three hundred sixty-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 21432068640 cubic inches would be around 231.5 feet tall.

Recreational maths with 21432068640

• 21432068640 backwards is 04686023412
• 21432068640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21432068640's digits is 36
• More coming soon!