21206120400

Names of 21206120400

• Cardinal: 21206120400 can be written as Twenty-one billion, two hundred six million, one hundred twenty thousand, four hundred.

Scientific notation

• Scientific notation: 2.12061204 × 10¹⁰

Factors of 21206120400

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 270

Divisors of 21206120400

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 25 30 31 36 38 40 45 48 50 57 60 62 72 73 75 76 80 90 93 95 100 114 120 124 137 144 146 150 152 155 171 180 186 190 200 219 225 228 240 248 274 279 285 292 300 304 310 342 360 365 372 380 400 411 438 450 456 465 475 496 548 558 570 584 589 600 620 657 684 685 720 730 744 760 775 822 855 876 900 912 930 950 1095 1096 1116 1140 1168 1178 1200 1233 1240 1314 1368 1370 1387 1395 1425 1460 1488 1520 1550 1644 1710 1752 1767 1800 1825 1860 1900 2055 2190 2192 2232 2263 2280 2325 2356 2466 2480 2603 2628 2736 2740 2774 2790 2850 2920 2945 3100 3285 3288 3420 3425 3504 3534 3600 3650 3720 3800 4110 4161 4247 4275 4380 4464 4526 4560 4650 4712 4932 5206 5256 5301 5475 5480 5548 5580 5700 5840 5890 6165 6200 6570 6576 6789 6840 6850 6935 6975 7068 7300 7440 7600 7809 8220 8322 8494 8550 8760 8835 9052 9300 9424 9864 10001 10275 10412 10512 10602 10950 10960 11096 11160 11315 11400 11780 12330 12400 12483 12741 13015 13140 13578 13680 13700 13870 13950 14136 14600 14725 15618 16425 16440 16644 16988 17100 17520 17670 18104 18600 19728 20002 20367 20550 20805 20824 21204 21235 21900 22192 22320 22630 22800 23427 23560 24660 24966 25482 26030 26280 26505 27156 27400 27740 27900 28272 29200 29450 30003 30825 31236 32850 32880 33288 33945 33976 34200 34675 35340 36208 37200 38223 39045 40004 40734 41100 41610 41648 42408 42470 42997 43800 44175 45260 46854 47120 49320 49932 50005 50964 52060 52560 53010 54312 54800 55480 55800 56575 58900 60006 61650 62415 62472 63705 65075 65700 66576 67890 67952 68400 69350 70680 76446 78090 80008 80693 81468 82200 83220 84816 84940 85994 87600 88350 90009 90520 93708 98640 99864 100010 101835 101928 104025 104120 106020 106175 108624 110960 111600 113150 117135 117800 120012 123300 124830 124944 127410 128991 130150 131400 132525 135780 138700 141360 150015 152892 156180 160016 161386 162936 164400 166440 169725 169880 171988 176700 180018 181040 187416 190019 191115 195225 199728 200020 203670 203856 208050 208240 212040 212350 214985 226300 234270 235600 240024 242079 246600 249660 250025 254820 257982 260300 262800 265050 271560 277400 300030 305784 310031 312075 312360 318525 322772 325872 332880 339450 339760 343976 353400 360036 374832 380038 382230 386973 390450 400040 403465 407340 416100 424080 424700 429970 450045 452600 468540 480048 484158 493200 499320 500050 509175 509640 515964 520600 530100 543120 554800 570057 585675 600060 611568 620062 624150 624720 637050 644955 645544 678900 687952 706800 720072 726237 750075 760076 764460 773946 780900 800080 806930 814680 832200 849400 859940 900090 905200 930093 937080 950095 955575 968316 998640 1000100 1018350 1019280 1031928 1041200 1060200 1074925 1140114 1171350 1200120 1210395 1240124 1248300 1274100 1289910 1291088 1357800 1440144 1452474 1500150 1520152 1528920 1547892 1550155 1561800 1613860 1629360 1664400 1698800 1710171 1719880 1800180 1860186 1874160 1900190 1911150 1934865 1936632 2000200 2017325 2036700 2063856 2120400 2149850 2250225 2280228 2342700 2400240 2420790 2480248 2496600 2548200 2579820 2715600 2790279 2850285 2904948 3000300 3040304 3057840 3095784 3100310 3123600 3224775 3227720 3420342 3439760 3600360 3631185 3720372 3800380 3822300 3869730 3873264 4000400 4034650 4073400 4299700 4500450 4560456 4650465 4685400 4750475 4841580 4960496 4993200 5096400 5159640 5580558 5700570 5809896 5890589 6000600 6051975 6191568 6200620 6449550 6455440 6840684 7200720 7262370 7440744 7600760 7644600 7739460 7750775 8069300 8146800 8550855 8599400 9000900 9120912 9300930 9370800 9500950 9674325 9683160 10319280 11161116 11401140 11619792 11781178 12001200 12103950 12401240 12899100 13681368 13951395 14251425 14524740 14881488 15201520 15289200 15478920 15501550 16138600 17101710 17198800 17671767 18001800 18155925 18601860 19001900 19348650 19366320 22322232 22802280 23252325 23562356 24207900 24802480 25798200 27362736 27902790 28502850 29049480 29452945 30957840 31003100 32277200 34203420 35343534 36003600 36311850 37203720 38003800 38697300 42754275 44644464 45604560 46504650 47124712 48415800 51596400 53015301 55805580 57005700 58098960 58905890 62006200 68406840 69756975 70687068 72623700 74407440 76007600 77394600 85508550 88358835 93009300 94249424 96831600 106030602 111611160 114011400 117811780 124012400 136813680 139513950 141374136 145247400 147264725 154789200 171017100 176717670 186018600 212061204 223222320 228022800 235623560 265076505 279027900 282748272 290494800 294529450 342034200 353435340 372037200 424122408 441794175 471247120 530153010 558055800 589058900 684068400 706870680 848244816 883588350 1060306020 1116111600 1178117800 1325382525 1413741360 1767176700 2120612040 2356235600 2650765050 3534353400 4241224080 5301530100 7068706800 10603060200 21206120400
• Sum of all divisors σ(n): 81650250240
• Sum of proper divisors (its aliquot sum) s(n): 60444129840
• 21206120400 is an abundant number, because the sum of its proper divisors (60444129840) is greater than itself. Its abundance is 39238009440

Bases of 21206120400

• Binary: 10011101111111110111011011111010000₂
• Hexadecimal: 0x4EFFBB7D0
• Base-36: 9QPKR80

Squares and roots of 21206120400

• 21206120400 squared (21206120400²) is 449699542419296160000
• 21206120400 cubed (21206120400³) is 9536382640368501652217664000000
• The square root of 21206120400 is 145623.2138087879
• The cube root of 21206120400 is 2767.9213205887

Scales and comparisons

• 21,206,120,400 seconds is equal to 674 years, 15 weeks, 5 hours.
• To count from 1 to 21,206,120,400 would take you about one thousand, three hundred forty-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 21206120400 cubic inches would be around 230.7 feet tall.

Recreational maths with 21206120400

• 21206120400 backwards is 00402160212
• 21206120400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21206120400's digits is 18
• More coming soon!