21538316800

Names of 21538316800

• Cardinal: 21538316800 can be written as Twenty-one billion, five hundred thirty-eight million, three hundred sixteen thousand, eight hundred.

Scientific notation

• Scientific notation: 2.15383168 × 10¹⁰

Factors of 21538316800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 79

Divisors of 21538316800

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 25 26 28 32 35 40 41 44 50 52 55 56 64 65 70 77 80 82 88 91 100 104 110 112 128 130 140 143 154 160 164 175 176 182 200 205 208 220 224 256 260 275 280 286 287 308 320 325 328 350 352 364 385 400 410 416 440 448 451 455 512 520 533 550 560 572 574 616 640 650 656 700 704 715 728 770 800 820 832 880 896 902 910 1001 1025 1040 1066 1100 1120 1144 1148 1232 1280 1300 1312 1400 1408 1430 1435 1456 1540 1600 1640 1664 1681 1760 1792 1804 1820 1925 2002 2050 2080 2132 2200 2240 2255 2275 2288 2296 2464 2560 2600 2624 2665 2800 2816 2860 2870 2912 3080 3157 3200 3280 3328 3362 3520 3575 3584 3608 3640 3731 3850 4004 4100 4160 4264 4400 4480 4510 4550 4576 4592 4928 5005 5200 5248 5330 5600 5632 5720 5740 5824 5863 6160 6314 6400 6560 6656 6724 7040 7150 7175 7216 7280 7462 7700 8008 8200 8320 8405 8528 8800 8960 9020 9100 9152 9184 9856 10010 10400 10496 10660 11200 11275 11440 11480 11648 11726 11767 12320 12628 12800 13120 13325 13448 14080 14300 14350 14432 14560 14924 15400 15785 16016 16400 16640 16810 17056 17600 17920 18040 18200 18304 18368 18491 18655 19712 20020 20800 20992 21320 21853 22400 22550 22880 22960 23296 23452 23534 24640 25025 25256 26240 26650 26896 28160 28600 28700 28864 29120 29315 29848 30800 31570 32032 32800 33280 33620 34112 35200 36080 36400 36608 36736 36982 37310 39424 40040 41041 41600 42025 42640 43706 44800 45100 45760 45920 46592 46904 47068 49280 50050 50512 52480 53300 53792 57200 57400 57728 58240 58630 58835 59696 61600 63140 64064 65600 67240 68224 70400 72160 72800 73216 73472 73964 74620 78925 80080 82082 83200 84050 85280 87412 89600 90200 91520 91840 92455 93275 93808 94136 98560 100100 101024 104960 106600 107584 109265 114400 114800 115456 116480 117260 117670 119392 123200 126280 128128 129437 131200 134480 136448 140800 144320 145600 146575 146944 147928 149240 152971 157850 160160 164164 166400 168100 170560 174824 180400 183040 183680 184910 186550 187616 188272 197120 200200 202048 205205 213200 215168 218530 228800 229600 230912 232960 234520 235340 238784 240383 246400 252560 256256 258874 262400 268960 272896 288640 291200 293150 294175 295856 298480 305942 315700 320320 328328 336200 341120 349648 360800 366080 367360 369820 373100 375232 376544 400400 404096 410410 426400 430336 437060 457600 459200 462275 469040 470680 477568 480766 492800 505120 512512 517748 524800 537920 546325 577280 582400 586300 588350 591712 596960 611884 631400 640640 647185 656656 672400 682240 699296 721600 734720 739640 746200 750464 753088 764855 800800 808192 820820 852800 860672 874120 915200 918400 924550 938080 941360 955136 961532 985600 1010240 1026025 1035496 1075840 1092650 1154560 1164800 1172600 1176700 1183424 1193920 1201915 1223768 1262800 1281280 1294370 1313312 1344800 1364480 1398592 1443200 1479280 1492400 1500928 1506176 1529710 1601600 1616384 1641640 1682681 1705600 1748240 1830400 1836800 1849100 1876160 1882720 1910272 1923064 2020480 2052050 2070992 2151680 2185300 2345200 2353400 2366848 2387840 2403830 2447536 2525600 2562560 2588740 2626624 2689600 2797184 2886400 2958560 2984800 3001856 3012352 3059420 3203200 3235925 3283280 3365362 3411200 3496480 3673600 3698200 3752320 3765440 3824275 3846128 4040960 4104100 4141984 4303360 4370600 4690400 4706800 4733696 4775680 4807660 4895072 5051200 5177480 5253248 5379200 5594368 5772800 5917120 5969600 6009575 6024704 6118840 6406400 6471850 6566560 6730724 6822400 6992960 7396400 7504640 7530880 7648550 7692256 8081920 8208200 8283968 8413405 8741200 9380800 9413600 9467392 9551360 9615320 9790144 10102400 10354960 10506496 10758400 11188736 11834240 11939200 12019150 12237680 12812800 12943700 13133120 13461448 13985920 14792800 15009280 15061760 15297100 15384512 16416400 16567936 16826810 17482400 18761600 18827200 19230640 19580288 20204800 20709920 21012992 21516800 23668480 23878400 24038300 24475360 25887400 26266240 26922896 27971840 29585600 30123520 30594200 30769024 32832800 33135872 33653620 34964800 37523200 37654400 38461280 39160576 40409600 41419840 42067025 47336960 47756800 48076600 48950720 51774800 52532480 53845792 55943680 59171200 61188400 61538048 65665600 66271744 67307240 69929600 75046400 75308800 76922560 78321152 82839680 84134050 96153200 97901440 103549600 105064960 107691584 118342400 122376800 123076096 131331200 134614480 139859200 150617600 153845120 165679360 168268100 192306400 195802880 207099200 215383168 236684800 244753600 262662400 269228960 279718400 307690240 331358720 336536200 384612800 391605760 414198400 430766336 489507200 525324800 538457920 615380480 673072400 769225600 828396800 861532672 979014400 1076915840 1346144800 1538451200 1656793600 1958028800 2153831680 2692289600 3076902400 4307663360 5384579200 10769158400 21538316800
• Sum of all divisors σ(n): 73438174656
• Sum of proper divisors (its aliquot sum) s(n): 51899857856
• 21538316800 is an abundant number, because the sum of its proper divisors (51899857856) is greater than itself. Its abundance is 30361541056

Bases of 21538316800

• Binary: 10100000011110010001010001000000000₂
• Hexadecimal: 0x503C8A200
• Base-36: 9W7CVLS

Squares and roots of 21538316800

• 21538316800 squared (21538316800²) is 463899090577162240000
• 21538316800 cubed (21538316800³) is 9991605576082815170117632000000
• The square root of 21538316800 is 146759.3840270529
• The cube root of 21538316800 is 2782.2997721813

Scales and comparisons

• 21,538,316,800 seconds is equal to 684 years, 44 weeks, 2 days, 1 hour, 46 minutes, 40 seconds.
• To count from 1 to 21,538,316,800 would take you about one thousand, three hundred sixty-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 21538316800 cubic inches would be around 231.9 feet tall.

Recreational maths with 21538316800

• 21538316800 backwards is 00861383512
• The number of decimal digits it has is: 11
• The sum of 21538316800's digits is 37
• More coming soon!