21558434040

Names of 21558434040

• Cardinal: 21558434040 can be written as Twenty-one billion, five hundred fifty-eight million, four hundred thirty-four thousand and forty.

Scientific notation

• Scientific notation: 2.155843404 × 10¹⁰

Factors of 21558434040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 139625

Divisors of 21558434040

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 18 20 22 24 26 27 30 33 36 39 40 44 45 52 54 55 60 65 66 72 78 88 90 99 104 108 110 117 120 130 132 135 143 156 165 180 195 198 216 220 234 260 264 270 286 297 312 330 351 360 390 396 429 440 468 495 520 540 572 585 594 660 702 715 780 792 858 936 990 1080 1144 1170 1188 1287 1320 1404 1430 1485 1560 1716 1755 1980 2145 2340 2376 2574 2808 2860 2970 3432 3510 3861 3960 4290 4680 5148 5720 5940 6435 7020 7722 8580 10296 11880 12870 14040 15444 17160 19305 25740 30888 38610 51480 77220 139591 154440 279182 418773 558364 697955 837546 1116728 1256319 1395910 1535501 1675092 1814683 2093865 2512638 2791820 3071002 3350184 3629366 3768957 4187730 4606503 5025276 5444049 5583640 6142004 6281595 7258732 7537914 7677505 8375460 9073415 9213006 10050552 10888098 12284008 12563190 13819509 14517464 15075828 15355010 16332147 16750920 18146830 18426012 18844785 19961513 21776196 23032515 25126380 27220245 27639018 30151656 30710020 32664294 36293660 36852024 37689570 39923026 41458527 43552392 46065030 48996441 50252760 54440490 55278036 59884539 61420040 65328588 69097545 72587320 75379140 79846052 81660735 82917054 92130060 97992882 99807565 108880980 110556072 119769078 130657176 138195090 150758280 159692104 163321470 165834108 179653617 184260120 195985764 199615130 207292635 217761960 239538156 244982205 276390180 299422695 326642940 331668216 359307234 391971528 399230260 414585270 479076312 489964410 538960851 552780360 598845390 653285880 718614468 798460520 829170540 898268085 979928820 1077921702 1197690780 1437228936 1658341080 1796536170 1959857640 2155843404 2395381560 2694804255 3593072340 4311686808 5389608510 7186144680 10779217020 21558434040
• Sum of all divisors σ(n): 84425241600
• Sum of proper divisors (its aliquot sum) s(n): 62866807560
• 21558434040 is an abundant number, because the sum of its proper divisors (62866807560) is greater than itself. Its abundance is 41308373520

Bases of 21558434040

• Binary: 10100000100111110111001100011111000₂
• Hexadecimal: 0x504FB98F8
• Base-36: 9WJC260

Squares and roots of 21558434040

• 21558434040 squared (21558434040²) is 464766078257030721600
• 21558434040 cubed (21558434040³) is 10019628842133674977867203264000
• The square root of 21558434040 is 146827.9062031465
• The cube root of 21558434040 is 2783.1657447551

Scales and comparisons

• 21,558,434,040 seconds is equal to 685 years, 25 weeks, 3 days, 21 hours, 54 minutes.
• To count from 1 to 21,558,434,040 would take you about one thousand, three hundred seventy 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 21558434040 cubic inches would be around 231.9 feet tall.

Recreational maths with 21558434040

• 21558434040 backwards is 04043485512
• 21558434040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21558434040's digits is 36
• More coming soon!