21272131440

Names of 21272131440

• Cardinal: 21272131440 can be written as Twenty-one billion, two hundred seventy-two million, one hundred thirty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.127213144 × 10¹⁰

Factors of 21272131440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 61209

Divisors of 21272131440

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 23 24 27 28 30 35 36 40 42 45 46 48 54 56 60 63 69 70 72 80 84 90 92 105 108 112 115 120 126 135 138 140 144 161 168 180 184 189 207 210 216 230 240 252 270 276 280 315 322 336 345 360 368 378 414 420 432 460 483 504 540 552 560 621 630 644 690 720 756 805 828 840 920 945 966 1008 1035 1080 1104 1242 1260 1288 1380 1449 1512 1610 1656 1680 1840 1890 1932 2070 2160 2415 2484 2520 2576 2760 2898 3024 3105 3220 3312 3780 3864 4140 4347 4830 4968 5040 5520 5796 6210 6440 7245 7560 7728 8280 8694 9660 9936 11592 12420 12880 14490 15120 16560 17388 19320 21735 23184 24840 28980 34776 38640 43470 49680 57960 61169 69552 86940 115920 122338 173880 183507 244676 305845 347760 367014 428183 489352 550521 611690 734028 856366 917535 978704 1101042 1223380 1284549 1406887 1468056 1651563 1712732 1835070 2140915 2202084 2446760 2569098 2752605 2813774 2936112 3303126 3425464 3670140 3853647 4220661 4281830 4404168 4893520 5138196 5505210 5627548 6422745 6606252 6850928 7034435 7340280 7707294 8257815 8441322 8563660 8808336 9848209 10276392 11010420 11255096 11560941 12661983 12845490 13212504 14068870 14680560 15414588 16515630 16882644 17127320 19268235 19696418 20552784 21103305 22020840 22510192 23121882 25323966 25690980 26425008 28137740 29544627 30829176 33031260 33765288 34254640 37985949 38536470 39392836 42206610 44041680 46243764 49241045 50647932 51381960 56275480 57804705 59089254 61658352 63309915 66062520 67530576 75971898 77072940 78785672 84413220 88633881 92487528 98482090 101295864 102763920 112550960 115609410 118178508 126619830 132125040 147723135 151943796 154145880 157571344 168826440 177267762 184975056 189929745 196964180 202591728 231218820 236357016 253239660 265901643 295446270 303887592 308291760 337652880 354535524 379859490 393928360 443169405 462437640 472714032 506479320 531803286 590892540 607775184 709071048 759718980 787856720 886338810 924875280 1012958640 1063606572 1181785080 1329508215 1418142096 1519437960 1772677620 2127213144 2363570160 2659016430 3038875920 3545355240 4254426288 5318032860 7090710480 10636065720 21272131440
• Sum of all divisors σ(n): 87380121600
• Sum of proper divisors (its aliquot sum) s(n): 66107990160
• 21272131440 is an abundant number, because the sum of its proper divisors (66107990160) is greater than itself. Its abundance is 44835858720

Bases of 21272131440

• Binary: 10011110011111010101111011101110000₂
• Hexadecimal: 0x4F3EAF770
• Base-36: 9RSVLO0

Squares and roots of 21272131440

• 21272131440 squared (21272131440²) is 452503576000636473600
• 21272131440 cubed (21272131440³) is 9625715545755568590077289984000
• The square root of 21272131440 is 145849.6878296283
• The cube root of 21272131440 is 2770.7903681963

Scales and comparisons

• 21,272,131,440 seconds is equal to 676 years, 20 weeks, 1 day, 5 hours, 24 minutes.
• To count from 1 to 21,272,131,440 would take you about one thousand, three hundred fifty-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 21272131440 cubic inches would be around 230.9 feet tall.

Recreational maths with 21272131440

• 21272131440 backwards is 04413127212
• 21272131440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21272131440's digits is 27
• More coming soon!