12921210720

Names of 12921210720

• Cardinal: 12921210720 can be written as Twelve billion, nine hundred twenty-one million, two hundred ten thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.292121072 × 10¹⁰

Factors of 12921210720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 643

Divisors of 12921210720

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 66 72 80 81 88 90 96 99 108 110 120 132 135 144 160 162 165 176 180 198 216 220 233 240 264 270 288 297 324 330 352 360 389 396 405 432 440 466 480 495 528 540 594 648 660 699 720 778 792 810 864 880 891 932 990 1056 1080 1165 1167 1188 1296 1320 1398 1440 1485 1556 1584 1620 1760 1782 1864 1945 1980 2097 2160 2330 2334 2376 2563 2592 2640 2796 2970 3112 3168 3240 3495 3501 3564 3728 3890 3960 4194 4279 4320 4455 4660 4668 4752 5126 5280 5592 5835 5940 6224 6291 6480 6990 7002 7128 7456 7689 7780 7920 8388 8558 8910 9320 9336 9504 10252 10485 10503 11184 11670 11880 12448 12582 12815 12837 12960 13980 14004 14256 15378 15560 15840 16776 17116 17505 17820 18640 18672 18873 20504 20970 21006 21395 22368 23067 23340 23760 25164 25630 25674 27960 28008 28512 30756 31120 31455 31509 33552 34232 35010 35640 37280 37344 37746 38445 38511 41008 41940 42012 42790 46134 46680 47520 50328 51260 51348 52515 55920 56016 61512 62240 62910 63018 64185 67104 68464 69201 70020 71280 75492 76890 77022 82016 83880 84024 85580 90637 92268 93360 94365 100656 102520 102696 105030 111840 112032 115335 115533 123024 125820 126036 128370 136928 138402 140040 142560 150984 153780 154044 157545 167760 168048 171160 181274 184536 186720 188730 192555 201312 205040 205392 207603 210060 230670 231066 246048 251640 252072 256740 271911 276804 280080 301968 307560 308088 315090 335520 336096 342320 346005 346599 362548 369072 377460 385110 410080 410784 415206 420120 453185 461340 462132 503280 504144 513480 543822 553608 560160 577665 603936 615120 616176 630180 684640 692010 693198 725096 738144 754920 770220 815733 830412 840240 906370 922680 924264 997007 1006560 1008288 1026960 1038015 1087644 1107216 1155330 1230240 1232352 1260360 1359555 1384020 1386396 1450192 1509840 1540440 1631466 1660824 1680480 1732995 1812740 1845360 1848528 1994014 2053920 2076030 2175288 2214432 2310660 2447199 2520720 2719110 2768040 2772792 2900384 2991021 3019680 3080880 3262932 3321648 3465990 3625480 3690720 3697056 3988028 4078665 4152060 4350576 4621320 4894398 4985035 5041440 5438220 5536080 5545584 5982042 6161760 6525864 6643296 6931980 7250960 7341597 7976056 8157330 8304120 8701152 8973063 9242640 9788796 9970070 10876440 11072160 11091168 11964084 12235995 13051728 13863960 14501920 14683194 14955105 15952112 16314660 16608240 17946126 18485280 19577592 19940140 21752880 23928168 24471990 26103456 26919189 27727920 29366388 29910210 31904224 32629320 33216480 35892252 36707985 39155184 39880280 43505760 44865315 47856336 48943980 53838378 55455840 58732776 59820420 65258640 71784504 73415970 78310368 79760560 80757567 89730630 95712672 97887960 107676756 117465552 119640840 130517280 134595945 143569008 146831940 159521120 161515134 179461260 195775920 215353512 234931104 239281680 269191890 287138016 293663880 323030268 358922520 391551840 403787835 430707024 478563360 538383780 587327760 646060536 717845040 807575670 861414048 1076767560 1174655520 1292121072 1435690080 1615151340 2153535120 2584242144 3230302680 4307070240 6460605360 12921210720
• Sum of all divisors σ(n): 50088598560
• Sum of proper divisors (its aliquot sum) s(n): 37167387840
• 12921210720 is an abundant number, because the sum of its proper divisors (37167387840) is greater than itself. Its abundance is 24246177120

Bases of 12921210720

• Binary: 1100000010001010100000011101100000₂
• Hexadecimal: 0x3022A0760
• Base-36: 5XOYE00

Squares and roots of 12921210720

• 12921210720 squared (12921210720²) is 166957686470642918400
• 12921210720 cubed (12921210720³) is 2157295448210870242522165248000
• The square root of 12921210720 is 113671.5035530013
• The cube root of 12921210720 is 2346.5748030643

Scales and comparisons

• 12,921,210,720 seconds is equal to 410 years, 44 weeks, 3 days, 1 hour, 12 minutes.
• To count from 1 to 12,921,210,720 would take you about eight hundred twenty-one 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 12921210720 cubic inches would be around 195.5 feet tall.

Recreational maths with 12921210720

• 12921210720 backwards is 02701212921
• 12921210720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12921210720's digits is 27
• More coming soon!