21380286180

Names of 21380286180

• Cardinal: 21380286180 can be written as Twenty-one billion, three hundred eighty million, two hundred eighty-six thousand, one hundred eighty.

Scientific notation

• Scientific notation: 2.138028618 × 10¹⁰

Factors of 21380286180

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 356

Divisors of 21380286180

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 19 20 22 23 30 33 38 44 46 55 57 60 66 69 76 92 95 110 114 115 121 132 138 165 190 209 220 228 230 242 253 276 285 293 330 345 363 380 418 437 460 484 506 529 570 586 605 627 660 690 726 759 836 874 879 1012 1045 1058 1140 1172 1210 1254 1265 1311 1380 1452 1465 1518 1587 1748 1758 1815 2090 2116 2185 2299 2420 2508 2530 2622 2645 2783 2930 3036 3135 3174 3223 3516 3630 3795 4180 4370 4395 4598 4807 5060 5244 5290 5566 5567 5819 5860 6270 6348 6446 6555 6739 6897 7260 7590 7935 8349 8740 8790 9196 9614 9669 10051 10580 11132 11134 11495 11638 12540 12892 13110 13478 13794 13915 14421 15180 15870 16115 16698 16701 17457 17580 19228 19338 20102 20217 22268 22990 23276 24035 26220 26956 27588 27830 27835 28842 29095 30153 31740 32230 33396 33402 33695 34485 34914 35453 38676 40204 40434 41745 45980 48070 48345 50255 52877 55660 55670 57684 58190 60306 61237 64009 64460 66804 67390 68970 69828 70906 72105 74129 80868 83490 83505 87285 96140 96690 100510 101085 105754 106359 110561 111340 116380 120612 122474 128018 128041 134780 137940 141812 144210 148258 150765 154997 158631 166980 167010 174570 177265 183711 192027 193380 201020 202170 211508 212718 221122 222387 244948 256036 256082 264385 288420 296516 301530 306185 309994 317262 320045 331683 334020 349140 354530 367422 370645 384054 384123 404340 425436 442244 444774 464991 512164 528770 531795 552805 603060 612370 619988 634524 640090 640205 663366 673607 709060 734844 741290 768108 768246 774985 793155 815419 889548 918555 929982 960135 1057540 1063590 1105610 1111935 1216171 1224740 1280180 1280410 1326732 1347214 1408451 1482580 1536492 1549970 1586310 1630838 1658415 1704967 1837110 1859964 1920270 1920615 2020821 2127180 2211220 2223870 2324955 2432342 2446257 2560820 2694428 2816902 2944943 3099940 3172620 3261676 3316830 3368035 3409934 3648513 3674220 3840540 3841230 4041642 4077095 4225353 4447740 4649910 4864684 4892514 5114901 5633804 5889886 6080855 6633660 6736070 6819868 7042255 7297026 7682460 8083284 8154190 8450706 8524835 8834829 9299820 9785028 10104105 10229802 11779772 12161710 12231285 13472140 14084510 14594052 14724715 15492961 16308380 16901412 17049670 17669658 18242565 18754637 20208210 20459604 21126765 24323420 24462570 25574505 28169020 29449430 30985922 32394373 34099340 35339316 36485130 37509274 40416420 42253530 44174145 46478883 48925140 51149010 56263911 58898860 61971844 64788746 72970260 75018548 77464805 84507060 88348290 92957766 93773185 97183119 102298020 112527822 129577492 154929610 161971865 176696580 185915532 187546370 194366238 225055644 232394415 281319555 309859220 323943730 356338103 375092740 388732476 464788830 485915595 562639110 647887460 712676206 929577660 971831190 1069014309 1125278220 1425352412 1781690515 1943662380 2138028618 3563381030 4276057236 5345071545 7126762060 10690143090 21380286180
• Sum of all divisors σ(n): 72654644160
• Sum of proper divisors (its aliquot sum) s(n): 51274357980
• 21380286180 is an abundant number, because the sum of its proper divisors (51274357980) is greater than itself. Its abundance is 29894071800

Bases of 21380286180

• Binary: 10011111010010111010100011011100100₂
• Hexadecimal: 0x4FA5D46E4
• Base-36: 9TL9QEC

Squares and roots of 21380286180

• 21380286180 squared (21380286180²) is 457116637138698992400
• 21380286180 cubed (21380286180³) is 9773284519664600810389645032000
• The square root of 21380286180 is 146219.9924086991
• The cube root of 21380286180 is 2775.4783118375

Scales and comparisons

• 21,380,286,180 seconds is equal to 679 years, 43 weeks, 23 minutes.
• To count from 1 to 21,380,286,180 would take you about one thousand, three hundred fifty-nine 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 21380286180 cubic inches would be around 231.3 feet tall.

Recreational maths with 21380286180

• 21380286180 backwards is 08168208312
• The number of decimal digits it has is: 11
• The sum of 21380286180's digits is 39
• More coming soon!