21099988000

Names of 21099988000

• Cardinal: 21099988000 can be written as Twenty-one billion, ninety-nine million, nine hundred eighty-eight thousand.

Scientific notation

• Scientific notation: 2.1099988 × 10¹⁰

Factors of 21099988000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 27

Divisors of 21099988000

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 25 26 28 32 35 40 49 50 52 56 65 70 80 91 98 100 104 112 125 130 140 160 169 175 182 196 200 208 224 245 250 260 280 325 338 343 350 364 392 400 416 455 490 500 520 560 637 650 676 686 700 728 784 800 845 875 910 980 1000 1040 1120 1183 1225 1274 1300 1352 1372 1400 1456 1568 1625 1690 1715 1750 1820 1960 2000 2080 2197 2275 2366 2401 2450 2548 2600 2704 2744 2800 2912 3185 3250 3380 3430 3500 3640 3920 4000 4225 4394 4459 4550 4732 4802 4900 5096 5200 5408 5488 5600 5915 6125 6370 6500 6760 6860 7000 7280 7840 8281 8450 8575 8788 8918 9100 9464 9604 9800 10192 10400 10976 10985 11375 11830 12005 12250 12740 13000 13520 13720 14000 14560 15379 15925 16562 16900 17150 17576 17836 18200 18928 19208 19600 20384 21125 21970 22295 22750 23660 24010 24500 25480 26000 27040 27440 28000 29575 30758 31213 31850 33124 33800 34300 35152 35672 36400 37856 38416 39200 41405 42250 42875 43940 44590 45500 47320 48020 49000 50960 52000 54880 54925 57967 59150 60025 61516 62426 63700 66248 67600 68600 70304 71344 72800 76832 76895 79625 82810 84500 85750 87880 89180 91000 94640 96040 98000 101920 107653 109850 111475 115934 118300 120050 123032 124852 127400 132496 135200 137200 142688 147875 153790 156065 159250 165620 169000 171500 175760 178360 182000 189280 192080 196000 207025 215306 219700 222950 231868 236600 240100 246064 249704 254800 264992 274400 274625 289835 295750 300125 307580 312130 318500 331240 338000 343000 351520 356720 364000 384160 384475 405769 414050 430612 439400 445900 463736 473200 480200 492128 499408 509600 538265 549250 557375 579670 591500 600250 615160 624260 637000 662480 676000 686000 713440 753571 768950 780325 811538 828100 861224 878800 891800 927472 946400 960400 998816 1035125 1076530 1098500 1114750 1159340 1183000 1200500 1230320 1248520 1274000 1324960 1372000 1449175 1507142 1537900 1560650 1623076 1656200 1722448 1757600 1783600 1854944 1920800 1922375 2028845 2070250 2153060 2197000 2229500 2318680 2366000 2401000 2460640 2497040 2548000 2691325 2898350 3014284 3075800 3121300 3246152 3312400 3444896 3567200 3767855 3844750 3901625 4057690 4140500 4306120 4394000 4459000 4637360 4732000 4802000 4994080 5274997 5382650 5796700 6028568 6151600 6242600 6492304 6624800 7245875 7535710 7689500 7803250 8115380 8281000 8612240 8788000 8918000 9274720 9604000 10144225 10549994 10765300 11593400 12057136 12303200 12485200 12984608 13456625 14491750 15071420 15379000 15606500 16230760 16562000 17224480 17836000 18839275 20288450 21099988 21530600 23186800 24114272 24970400 26374985 26913250 28983500 30142840 30758000 31213000 32461520 33124000 37678550 40576900 42199976 43061200 46373600 50721125 52749970 53826500 57967000 60285680 61516000 62426000 64923040 75357100 81153800 84399952 86122400 94196375 101442250 105499940 107653000 115934000 120571360 124852000 131874925 150714200 162307600 168799904 188392750 202884500 210999880 215306000 231868000 263749850 301428400 324615200 376785500 405769000 421999760 430612000 527499700 602856800 659374625 753571000 811538000 843999520 1054999400 1318749250 1507142000 1623076000 2109998800 2637498500 3014284000 4219997600 5274997000 10549994000 21099988000
• Sum of all divisors σ(n): 65517182640
• Sum of proper divisors (its aliquot sum) s(n): 44417194640
• 21099988000 is an abundant number, because the sum of its proper divisors (44417194640) is greater than itself. Its abundance is 23317206640

Bases of 21099988000

• Binary: 10011101001101010000100010000100000₂
• Hexadecimal: 0x4E9A84420
• Base-36: 9OYDYXS

Squares and roots of 21099988000

• 21099988000 squared (21099988000²) is 445209493600144000000
• 21099988000 cubed (21099988000³) is 9393914972449115198272000000000
• The square root of 21099988000 is 145258.3491576301
• The cube root of 21099988000 is 2763.2959644069

Scales and comparisons

• 21,099,988,000 seconds is equal to 670 years, 47 weeks, 3 days, 19 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,099,988,000 would take you about one thousand, three hundred forty-one 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 21099988000 cubic inches would be around 230.3 feet tall.

Recreational maths with 21099988000

• 21099988000 backwards is 00088999012
• The number of decimal digits it has is: 11
• The sum of 21099988000's digits is 46
• More coming soon!