2172121920

Names of 2172121920

• Cardinal: 2172121920 can be written as Two billion, one hundred seventy-two million, one hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.17212192 × 10⁹

Factors of 2172121920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1840

Divisors of 2172121920

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 47 48 54 60 64 72 80 81 90 94 96 108 120 135 141 144 160 162 180 188 192 216 235 240 270 282 288 320 324 360 376 405 423 432 470 480 540 564 576 648 705 720 752 810 846 864 940 960 1080 1128 1269 1296 1410 1440 1504 1620 1692 1728 1783 1880 2115 2160 2256 2538 2592 2820 2880 3008 3240 3384 3566 3760 3807 4230 4320 4512 5076 5184 5349 5640 6345 6480 6768 7132 7520 7614 8460 8640 8915 9024 10152 10698 11280 12690 12960 13536 14264 15040 15228 16047 16920 17830 19035 20304 21396 22560 25380 25920 26745 27072 28528 30456 32094 33840 35660 38070 40608 42792 45120 48141 50760 53490 57056 60912 64188 67680 71320 76140 80235 81216 83801 85584 96282 101520 106980 114112 121824 128376 135360 142640 144423 152280 160470 167602 171168 192564 203040 213960 240705 243648 251403 256752 285280 288846 304560 320940 335204 342336 385128 406080 419005 427920 481410 502806 513504 570560 577692 609120 641880 670408 722115 754209 770256 838010 855840 962820 1005612 1027008 1155384 1218240 1257015 1283760 1340816 1444230 1508418 1540512 1676020 1711680 1925640 2011224 2262627 2310768 2514030 2567520 2681632 2888460 3016836 3081024 3352040 3771045 3851280 4022448 4525254 4621536 5028060 5135040 5363264 5776920 6033672 6704080 6787881 7542090 7702560 8044896 9050508 9243072 10056120 11313135 11553840 12067344 13408160 13575762 15084180 15405120 16089792 18101016 20112240 22626270 23107680 24134688 26816320 27151524 30168360 33939405 36202032 40224480 45252540 46215360 48269376 54303048 60336720 67878810 72404064 80448960 90505080 108606096 120673440 135757620 144808128 181010160 217212192 241346880 271515240 362020320 434424384 543030480 724040640 1086060960 2172121920
• Sum of all divisors σ(n): 7895441664
• Sum of proper divisors (its aliquot sum) s(n): 5723319744
• 2172121920 is an abundant number, because the sum of its proper divisors (5723319744) is greater than itself. Its abundance is 3551197824

Bases of 2172121920

• Binary: 10000001011101111111001101000000₂
• Hexadecimal: 0x8177F340
• Base-36: ZX8400

Squares and roots of 2172121920

• 2172121920 squared (2172121920²) is 4718113635344486400
• 2172121920 cubed (2172121920³) is 10248318048382645660581888000
• The square root of 2172121920 is 46606.0287945669
• The cube root of 2172121920 is 1295.0744420369

Scales and comparisons

• 2,172,121,920 seconds is equal to 69 years, 3 weeks, 3 days, 7 hours, 12 minutes.
• To count from 1 to 2,172,121,920 would take you about one hundred thirty-eight 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 2172121920 cubic inches would be around 107.9 feet tall.

Recreational maths with 2172121920

• 2172121920 backwards is 0291212712
• 2172121920 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2172121920's digits is 27
• More coming soon!