21855681120

Names of 21855681120

• Cardinal: 21855681120 can be written as Twenty-one billion, eight hundred fifty-five million, six hundred eighty-one thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.185568112 × 10¹⁰

Factors of 21855681120

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3374

Divisors of 21855681120

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 32 35 39 40 42 48 52 56 60 65 70 78 80 84 91 96 104 105 112 120 130 140 156 157 160 168 182 195 208 210 224 240 260 273 280 312 314 336 364 390 416 420 455 471 480 520 546 560 624 628 672 728 780 785 840 910 942 1040 1092 1099 1120 1248 1256 1365 1456 1560 1570 1680 1820 1884 2041 2080 2184 2198 2355 2512 2730 2912 3120 3140 3187 3297 3360 3640 3768 4082 4368 4396 4710 5024 5460 5495 6123 6240 6280 6374 6594 7280 7536 8164 8736 8792 9420 9561 10205 10920 10990 12246 12560 12748 13188 14287 14560 15072 15935 16328 16485 17584 18840 19122 20410 21840 21980 22309 24492 25120 25496 26376 28574 30615 31870 32656 32970 35168 37680 38244 40820 41431 42861 43680 43960 44618 47805 48984 50992 52752 57148 61230 63740 65312 65940 66927 71435 75360 76488 81640 82862 85722 87920 89236 95610 97968 101984 105504 111545 114296 122460 124293 127480 131880 133854 142870 152976 163280 165724 171444 175840 178472 191220 195936 207155 214305 223090 228592 244920 248586 254960 263760 267708 285740 290017 305952 326560 331448 334635 342888 356944 382440 414310 428610 446180 457184 489840 497172 500359 509920 527520 535416 571480 580034 621465 662896 669270 685776 713888 764880 828620 857220 870051 892360 979680 994344 1000718 1070832 1142960 1160068 1242930 1325792 1338540 1371552 1450085 1501077 1529760 1657240 1714440 1740102 1784720 1988688 2001436 2141664 2285920 2320136 2485860 2501795 2677080 2900170 3002154 3314480 3428880 3480204 3502513 3569440 3977376 4002872 4350255 4640272 4971720 5003590 5354160 5800340 6004308 6504667 6628960 6857760 6960408 7005026 7505385 8005744 8700510 9280544 9943440 10007180 10507539 10708320 11600680 12008616 13009334 13920816 14010052 15010770 16011488 17401020 17512565 19514001 19886880 20014360 21015078 23201360 24017232 26018668 27841632 28020104 30021540 32523335 34802040 35025130 39028002 40028720 42030156 45532669 46402720 48034464 52037336 52537695 56040208 60043080 65046670 69604080 70050260 78056004 80057440 84060312 91065338 97570005 104074672 105075390 112080416 120086160 130093340 136598007 139208160 140100520 156112008 168120624 182130676 195140010 208149344 210150780 227663345 240172320 260186680 273196014 280201040 312224016 336241248 364261352 390280020 420301560 455326690 520373360 546392028 560402080 624448032 682990035 728522704 780560040 840603120 910653380 1040746720 1092784056 1365980070 1457045408 1561120080 1681206240 1821306760 2185568112 2731960140 3122240160 3642613520 4371136224 5463920280 7285227040 10927840560 21855681120
• Sum of all divisors σ(n): 85299250176
• Sum of proper divisors (its aliquot sum) s(n): 63443569056
• 21855681120 is an abundant number, because the sum of its proper divisors (63443569056) is greater than itself. Its abundance is 41587887936

Bases of 21855681120

• Binary: 10100010110101100110011101001100000₂
• Hexadecimal: 0x516B33A60
• Base-36: A1GB3HC

Squares and roots of 21855681120

• 21855681120 squared (21855681120²) is 477670797219124454400
• 21855681120 cubed (21855681120³) is 10439820624357366840960380928000
• The square root of 21855681120 is 147836.6704170519
• The cube root of 21855681120 is 2795.8988053863

Scales and comparisons

• 21,855,681,120 seconds is equal to 694 years, 49 weeks, 6 hours, 32 minutes.
• To count from 1 to 21,855,681,120 would take you about one thousand, three hundred eighty-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 21855681120 cubic inches would be around 233 feet tall.

Recreational maths with 21855681120

• 21855681120 backwards is 02118655812
• 21855681120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21855681120's digits is 39
• More coming soon!