21279362793390

Names of 21279362793390

• Cardinal: 21279362793390 can be written as Twenty-one trillion, two hundred seventy-nine billion, three hundred sixty-two million, seven hundred ninety-three thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.127936279339 × 10¹³

Factors of 21279362793390

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8623

Divisors of 21279362793390

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 19 26 30 38 39 45 57 65 78 90 95 114 117 130 169 171 190 195 234 247 285 338 342 390 494 507 570 585 741 845 855 1014 1170 1235 1482 1521 1690 1710 2223 2470 2535 3042 3211 3705 4446 5070 6422 7410 7605 8581 9633 11115 15210 16055 17162 19266 22230 25743 28899 32110 42905 48165 51486 57798 77229 85810 96330 111553 128715 144495 154458 163039 223106 257430 288990 326078 334659 386145 489117 557765 669318 772290 815195 978234 1003977 1115530 1450189 1467351 1630390 1673295 2007954 2119507 2445585 2900378 2934702 3346590 4239014 4350567 4891170 5019885 6358521 7250945 7336755 8701134 10039770 10597535 12717042 13051701 14501890 14673510 19075563 21195070 21752835 26103402 27553591 31792605 38151126 43505670 55107182 63585210 65258505 73633561 82660773 95377815 130517010 137767955 147267122 165321546 190755630 220900683 247982319 275535910 368167805 413303865 441801366 495964638 662702049 736335610 826607730 957236293 1104503415 1239911595 1325404098 1399037659 1914472586 2209006830 2479823190 2798075318 2871708879 3313510245 4197112977 4786181465 5743417758 6627020490 6995188295 8394225954 8615126637 9572362930 12444071809 12591338931 13990376590 14358544395 17230253274 18187489567 20985564885 24888143618 25182677862 28717088790 36374979134 37332215427 41971129770 43075633185 54562468701 62220359045 62956694655 74664430854 86151266370 90937447835 109124937402 111996646281 124440718090 125913389310 163687406103 181874895670 186661077135 223993292562 236437364371 272812343505 327374812206 373322154270 472874728742 545624687010 559983231405 709312093113 818437030515 1119966462810 1182186821855 1418624186226 1636874061030 2127936279339 2364373643710 3546560465565 4255872558678 7093120931130 10639681396695 21279362793390
• Sum of all divisors σ(n): 63070076950920
• Sum of proper divisors (its aliquot sum) s(n): 41790714157530
• 21279362793390 is an abundant number, because the sum of its proper divisors (41790714157530) is greater than itself. Its abundance is 20511351364140

Bases of 21279362793390

• Binary: 100110101101001111100110111000011111110101110₂
• Hexadecimal: 0x135A7CDC3FAE
• Base-36: 7JJLR6UNI

Squares and roots of 21279362793390

• 21279362793390 squared (21279362793390²) is 452811280892710663827692100
• 21279362793390 cubed (21279362793390³) is 9635535523055615524317479394692835219000
• The square root of 21279362793390 is 4612955.9713257615
• The cube root of 21279362793390 is 27711.0430467799

Scales and comparisons

• 21,279,362,793,390 seconds is equal to 676,617 years, 47 weeks, 4 days, 5 hours, 16 minutes, 30 seconds.
• To count from 1 to 21,279,362,793,390 would take you about one million, six hundred ninety-one thousand, five hundred forty-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 21279362793390 cubic inches would be around 2309.3 feet tall.

Recreational maths with 21279362793390

• 21279362793390 backwards is 09339726397212
• The number of decimal digits it has is: 14
• The sum of 21279362793390's digits is 63
• More coming soon!