21445920000

Names of 21445920000

• Cardinal: 21445920000 can be written as Twenty-one billion, four hundred forty-five million, nine hundred twenty thousand.

Scientific notation

• Scientific notation: 2.144592 × 10¹⁰

Factors of 21445920000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 344

Divisors of 21445920000

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 53 60 64 72 75 80 90 96 100 106 120 125 128 144 150 159 160 180 192 200 212 225 240 250 256 265 281 288 300 318 320 360 375 384 400 424 450 477 480 500 530 562 576 600 625 636 640 720 750 768 795 800 843 848 900 954 960 1000 1060 1124 1125 1152 1200 1250 1272 1280 1325 1405 1440 1500 1590 1600 1686 1696 1800 1875 1908 1920 2000 2120 2248 2250 2304 2385 2400 2500 2529 2544 2650 2810 2880 3000 3180 3200 3372 3392 3600 3750 3816 3840 3975 4000 4215 4240 4496 4500 4770 4800 5000 5058 5088 5300 5620 5625 5760 6000 6360 6400 6625 6744 6784 7025 7200 7500 7632 7950 8000 8430 8480 8992 9000 9540 9600 10000 10116 10176 10600 11240 11250 11520 11925 12000 12645 12720 13250 13488 13568 14050 14400 14893 15000 15264 15900 16000 16860 16960 17984 18000 19080 19200 19875 20000 20232 20352 21075 21200 22480 22500 23850 24000 25290 25440 26500 26976 28100 28800 29786 30000 30528 31800 32000 33125 33720 33920 35125 35968 36000 38160 39750 40000 40464 40704 42150 42400 44679 44960 45000 47700 48000 50580 50880 53000 53952 56200 57600 59572 59625 60000 61056 63225 63600 66250 67440 67840 70250 71936 72000 74465 76320 79500 80000 80928 84300 84800 89358 89920 90000 95400 96000 99375 101160 101760 105375 106000 107904 112400 119144 119250 120000 122112 126450 127200 132500 134037 134880 140500 144000 148930 152640 159000 160000 161856 168600 169600 175625 178716 179840 180000 190800 198750 202320 203520 210750 212000 215808 223395 224800 238288 238500 240000 252900 254400 265000 268074 269760 281000 288000 297860 298125 305280 316125 318000 323712 337200 339200 351250 357432 359680 360000 372325 381600 397500 404640 421500 424000 446790 449600 476576 477000 480000 505800 508800 526875 530000 536148 539520 562000 595720 596250 610560 632250 636000 647424 670185 674400 702500 714864 720000 744650 763200 795000 809280 843000 848000 893580 899200 953152 954000 1011600 1017600 1053750 1060000 1072296 1079040 1116975 1124000 1191440 1192500 1264500 1272000 1340370 1348800 1405000 1429728 1440000 1489300 1526400 1580625 1590000 1618560 1686000 1696000 1787160 1798400 1861625 1906304 1908000 2023200 2107500 2120000 2144592 2233950 2248000 2382880 2385000 2529000 2544000 2680740 2697600 2810000 2859456 2978600 3052800 3161250 3180000 3237120 3350925 3372000 3574320 3723250 3812608 3816000 4046400 4215000 4240000 4289184 4467900 4496000 4765760 4770000 5058000 5088000 5361480 5395200 5584875 5620000 5718912 5957200 6322500 6360000 6701850 6744000 7148640 7446500 7632000 8092800 8430000 8480000 8578368 8935800 8992000 9308125 9531520 9540000 10116000 10722960 11169750 11240000 11437824 11914400 12645000 12720000 13403700 13488000 14297280 14893000 15264000 16185600 16754625 16860000 17156736 17871600 18616250 19063040 19080000 20232000 21445920 22339500 22480000 23828800 25290000 25440000 26807400 26976000 27924375 28594560 29786000 33509250 33720000 34313472 35743200 37232500 38160000 40464000 42891840 44679000 44960000 47657600 50580000 53614800 55848750 57189120 59572000 67018500 67440000 71486400 74465000 76320000 80928000 83773125 85783680 89358000 95315200 101160000 107229600 111697500 119144000 134037000 134880000 142972800 148930000 167546250 171567360 178716000 202320000 214459200 223395000 238288000 268074000 285945600 297860000 335092500 357432000 404640000 428918400 446790000 476576000 536148000 595720000 670185000 714864000 857836800 893580000 1072296000 1191440000 1340370000 1429728000 1787160000 2144592000 2382880000 2680740000 3574320000 4289184000 5361480000 7148640000 10722960000 21445920000
• Sum of all divisors σ(n): 79005650724
• Sum of proper divisors (its aliquot sum) s(n): 57559730724
• 21445920000 is an abundant number, because the sum of its proper divisors (57559730724) is greater than itself. Its abundance is 36113810724

Bases of 21445920000

• Binary: 10011111110010001101100010100000000₂
• Hexadecimal: 0x4FE46C500
• Base-36: 9UOCHS0

Squares and roots of 21445920000

• 21445920000 squared (21445920000²) is 459927484646400000000
• 21445920000 cubed (21445920000³) is 9863568041527922688000000000000
• The square root of 21445920000 is 146444.2556060155
• The cube root of 21445920000 is 2778.3154917561

Scales and comparisons

• 21,445,920,000 seconds is equal to 681 years, 47 weeks, 3 days, 16 hours.
• To count from 1 to 21,445,920,000 would take you about one thousand, three hundred sixty-three 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 21445920000 cubic inches would be around 231.5 feet tall.

Recreational maths with 21445920000

• 21445920000 backwards is 00002954412
• The number of decimal digits it has is: 11
• The sum of 21445920000's digits is 27
• More coming soon!