21207398400

Names of 21207398400

• Cardinal: 21207398400 can be written as Twenty-one billion, two hundred seven million, three hundred ninety-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.12073984 × 10¹⁰

Factors of 21207398400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 62

Divisors of 21207398400

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 25 27 29 30 32 36 40 45 46 48 50 54 58 60 64 69 72 75 80 87 90 92 96 100 108 115 116 120 128 135 138 144 145 150 160 174 180 184 192 200 207 216 225 230 232 240 256 261 270 276 288 290 300 320 345 348 360 368 384 400 414 432 435 450 460 464 480 512 522 529 540 552 575 576 580 600 621 640 667 675 690 696 720 725 736 768 783 800 828 864 870 900 920 928 960 1024 1035 1044 1058 1080 1104 1150 1152 1160 1200 1242 1280 1305 1334 1350 1380 1392 1440 1450 1472 1536 1566 1587 1600 1656 1725 1728 1740 1800 1840 1856 1920 2001 2048 2070 2088 2116 2160 2175 2208 2300 2304 2320 2400 2484 2560 2610 2645 2668 2700 2760 2784 2880 2900 2944 3072 3105 3132 3174 3200 3312 3335 3450 3456 3480 3600 3680 3712 3840 3915 4002 4140 4176 4232 4320 4350 4416 4600 4608 4640 4761 4800 4968 5120 5175 5220 5290 5336 5400 5520 5568 5760 5800 5888 6003 6144 6210 6264 6348 6400 6525 6624 6670 6900 6912 6960 7200 7360 7424 7680 7830 7935 8004 8280 8352 8464 8640 8700 8832 9200 9216 9280 9522 9600 9936 10005 10240 10350 10440 10580 10672 10800 11040 11136 11520 11600 11776 12006 12420 12528 12696 12800 13050 13225 13248 13340 13800 13824 13920 14283 14400 14720 14848 15341 15360 15525 15660 15870 16008 16560 16675 16704 16928 17280 17400 17664 18009 18400 18432 18560 19044 19200 19575 19872 20010 20700 20880 21160 21344 21600 22080 22272 23040 23200 23552 23805 24012 24840 25056 25392 25600 26100 26450 26496 26680 27600 27648 27840 28566 28800 29440 29696 30015 30682 30720 31050 31320 31740 32016 33120 33350 33408 33856 34560 34800 35328 36018 36800 37120 38088 38400 39150 39675 39744 40020 41400 41760 42320 42688 43200 44160 44544 46023 46080 46400 47104 47610 48024 49680 50025 50112 50784 51200 52200 52900 52992 53360 55200 55296 55680 57132 57600 58880 59392 60030 61364 62100 62640 63480 64032 66240 66700 66816 67712 69120 69600 70656 71415 72036 73600 74240 76176 76705 76800 78300 79350 79488 80040 82800 83520 84640 85376 86400 88320 89088 90045 92046 92160 92800 95220 96048 99360 100050 100224 101568 104400 105800 105984 106720 110400 111360 114264 115200 117760 119025 120060 122728 124200 125280 126960 128064 132480 133400 133632 135424 138069 138240 139200 141312 142830 144072 147200 148480 150075 152352 153410 153600 156600 158700 158976 160080 165600 167040 169280 170752 172800 176640 178176 180090 184092 185600 190440 192096 198720 200100 200448 203136 208800 211600 211968 213440 220800 222720 228528 230115 230400 235520 238050 240120 245456 248400 250560 253920 256128 264960 266800 267264 270848 276138 276480 278400 285660 288144 294400 296960 300150 304704 306820 313200 317400 317952 320160 331200 334080 338560 341504 345600 353280 357075 360180 368184 371200 380880 383525 384192 397440 400200 400896 406272 414207 417600 423200 423936 426880 441600 445440 450225 457056 460230 460800 476100 480240 490912 496800 501120 507840 512256 529920 533600 534528 541696 552276 556800 571320 576288 588800 600300 609408 613640 626400 634800 635904 640320 662400 668160 677120 683008 690345 691200 706560 714150 720360 736368 742400 761760 767050 768384 794880 800400 801792 812544 828414 835200 846400 853760 883200 890880 900450 914112 920460 952200 960480 981824 993600 1002240 1015680 1024512 1059840 1067200 1083392 1104552 1113600 1142640 1150575 1152576 1177600 1200600 1218816 1227280 1252800 1269600 1271808 1280640 1324800 1336320 1354240 1366016 1380690 1382400 1428300 1440720 1472736 1484800 1523520 1534100 1536768 1589760 1600800 1603584 1625088 1656828 1670400 1692800 1707520 1766400 1800900 1828224 1840920 1904400 1920960 1963648 1987200 2004480 2031360 2049024 2071035 2119680 2134400 2209104 2227200 2285280 2301150 2305152 2401200 2437632 2454560 2505600 2539200 2561280 2649600 2672640 2708480 2761380 2856600 2881440 2945472 3047040 3068200 3073536 3179520 3201600 3250176 3313656 3340800 3385600 3415040 3451725 3532800 3601800 3656448 3681840 3808800 3841920 3927296 3974400 4008960 4062720 4098048 4142070 4268800 4418208 4454400 4570560 4602300 4610304 4802400 4875264 4909120 5011200 5078400 5122560 5299200 5416960 5522760 5713200 5762880 5890944 6094080 6136400 6147072 6359040 6403200 6627312 6681600 6771200 6830080 6903450 7203600 7312896 7363680 7617600 7683840 7854592 7948800 8017920 8125440 8284140 8537600 8836416 9141120 9204600 9220608 9604800 9750528 9818240 10022400 10156800 10245120 10355175 10598400 11045520 11426400 11525760 11781888 12188160 12272800 12294144 12806400 13254624 13363200 13542400 13806900 14407200 14625792 14727360 15235200 15367680 15709184 15897600 16250880 16568280 17075200 17672832 18282240 18409200 18441216 19209600 19636480 20044800 20313600 20490240 20710350 22091040 22852800 23051520 23563776 24376320 24545600 25612800 26509248 27084800 27613800 28814400 29251584 29454720 30470400 30735360 31418368 31795200 33136560 34150400 35345664 36564480 36818400 36882432 38419200 39272960 40089600 40627200 41420700 44182080 45705600 46103040 47127552 48752640 49091200 51225600 53018496 55227600 57628800 58909440 60940800 61470720 66273120 70691328 73128960 73636800 76838400 78545920 81254400 82841400 88364160 91411200 92206080 94255104 98182400 102451200 106036992 110455200 115257600 117818880 121881600 132546240 141382656 146257920 147273600 153676800 157091840 165682800 176728320 182822400 184412160 196364800 212073984 220910400 230515200 235637760 243763200 265092480 282765312 294547200 307353600 331365600 353456640 365644800 392729600 424147968 441820800 461030400 471275520 530184960 589094400 662731200 706913280 731289600 785459200 848295936 883641600 922060800 1060369920 1178188800 1325462400 1413826560 1767283200 2120739840 2356377600 2650924800 3534566400 4241479680 5301849600 7069132800 10603699200 21207398400
• Sum of all divisors σ(n): 84240702000
• Sum of proper divisors (its aliquot sum) s(n): 63033303600
• 21207398400 is an abundant number, because the sum of its proper divisors (63033303600) is greater than itself. Its abundance is 41825905200

Bases of 21207398400

• Binary: 10011110000000011110011100000000000₂
• Hexadecimal: 0x4F00F3800
• Base-36: 9QQC5C0

Squares and roots of 21207398400

• 21207398400 squared (21207398400²) is 449753746896322560000
• 21207398400 cubed (21207398400³) is 9538106892323076024827904000000
• The square root of 21207398400 is 145627.6017793331
• The cube root of 21207398400 is 2767.9769229703

Scales and comparisons

• 21,207,398,400 seconds is equal to 674 years, 17 weeks, 1 day.
• To count from 1 to 21,207,398,400 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 21207398400 cubic inches would be around 230.7 feet tall.

Recreational maths with 21207398400

• 21207398400 backwards is 00489370212
• 21207398400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21207398400's digits is 36
• More coming soon!