21065508000

Names of 21065508000

• Cardinal: 21065508000 can be written as Twenty-one billion, sixty-five million, five hundred eight thousand.

Scientific notation

• Scientific notation: 2.1065508 × 10¹⁰

Factors of 21065508000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 912

Divisors of 21065508000

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 72 75 79 80 81 90 96 100 108 120 125 135 144 150 158 160 162 180 200 216 225 237 240 250 270 288 300 316 324 360 375 395 400 405 432 450 474 480 500 540 600 632 648 675 711 720 750 790 800 810 823 864 900 948 1000 1080 1125 1185 1200 1264 1296 1350 1422 1440 1500 1580 1620 1646 1800 1896 1975 2000 2025 2133 2160 2250 2370 2400 2469 2528 2592 2700 2844 3000 3160 3240 3292 3375 3555 3600 3792 3950 4000 4050 4115 4266 4320 4500 4740 4938 5400 5688 5925 6000 6320 6399 6480 6584 6750 7110 7200 7407 7584 7900 8100 8230 8532 9000 9480 9875 9876 10125 10665 10800 11376 11850 12000 12345 12640 12798 12960 13168 13500 14220 14814 15800 16200 16460 17064 17775 18000 18960 19750 19752 20250 20575 21330 21600 22221 22752 23700 24690 25596 26336 27000 28440 29625 29628 31600 31995 32400 32920 34128 35550 36000 37035 37920 39500 39504 40500 41150 42660 44442 47400 49380 51192 53325 54000 56880 59250 59256 61725 63200 63990 64800 65017 65840 66663 68256 71100 74070 79000 79008 81000 82300 85320 88875 88884 94800 98760 102384 102875 106650 108000 111105 113760 118500 118512 123450 127980 130034 131680 133326 142200 148140 158000 159975 162000 164600 170640 177750 177768 185175 189600 195051 197520 204768 205750 213300 222210 237000 237024 246900 255960 260068 266625 266652 284400 296280 308625 316000 319950 324000 325085 329200 333315 341280 355500 355536 370350 390102 395040 411500 426600 444420 474000 493800 511920 520136 533250 533304 555525 568800 585153 592560 617250 639900 650170 658400 666630 711000 711072 740700 780204 799875 823000 853200 888840 925875 948000 975255 987600 1023840 1040272 1066500 1066608 1111050 1170306 1185120 1234500 1279800 1300340 1333260 1422000 1481400 1560408 1599750 1625425 1646000 1666575 1706400 1755459 1777680 1851750 1950510 1975200 2080544 2133000 2133216 2222100 2340612 2469000 2559600 2600680 2666520 2777625 2844000 2925765 2962800 3120816 3199500 3250850 3292000 3333150 3510918 3555360 3703500 3901020 4266000 4444200 4681224 4876275 4938000 5119200 5201360 5266377 5333040 5555250 5851530 5925600 6241632 6399000 6501700 6666300 7021836 7407000 7802040 8127125 8332875 8532000 8777295 8888400 9362448 9752550 9876000 10402720 10532754 10666080 11110500 11703060 12798000 13003400 13332600 14043672 14628825 14814000 15604080 16254250 16665750 17554590 17776800 18724896 19505100 21065508 22221000 23406120 24381375 25596000 26006800 26331885 26665200 28087344 29257650 29628000 31208160 32508500 33331500 35109180 39010200 42131016 43886475 44442000 46812240 48762750 52013600 52663770 53330400 56174688 58515300 65017000 66663000 70218360 73144125 78020400 84262032 87772950 88884000 93624480 97525500 105327540 117030600 130034000 131659425 133326000 140436720 146288250 156040800 168524064 175545900 195051000 210655080 219432375 234061200 260068000 263318850 266652000 280873440 292576500 351091800 390102000 421310160 438864750 468122400 526637700 585153000 658297125 702183600 780204000 842620320 877729500 1053275400 1170306000 1316594250 1404367200 1755459000 2106550800 2340612000 2633188500 3510918000 4213101600 5266377000 7021836000 10532754000 21065508000
• Sum of all divisors σ(n): 78391272960
• Sum of proper divisors (its aliquot sum) s(n): 57325764960
• 21065508000 is an abundant number, because the sum of its proper divisors (57325764960) is greater than itself. Its abundance is 36260256960

Bases of 21065508000

• Binary: 10011100111100110100010010010100000₂
• Hexadecimal: 0x4E79A24A0
• Base-36: 9ODUY00

Squares and roots of 21065508000

• 21065508000 squared (21065508000²) is 443755627298064000000
• 21065508000 cubed (21065508000³) is 9347937716892385576512000000000
• The square root of 21065508000 is 145139.6155431039
• The cube root of 21065508000 is 2761.7899542145

Scales and comparisons

• 21,065,508,000 seconds is equal to 669 years, 42 weeks, 3 days, 18 hours.
• To count from 1 to 21,065,508,000 would take you about one thousand, three hundred thirty-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 21065508000 cubic inches would be around 230.1 feet tall.

Recreational maths with 21065508000

• 21065508000 backwards is 00080556012
• 21065508000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21065508000's digits is 27
• More coming soon!