21970438920

Names of 21970438920

• Cardinal: 21970438920 can be written as Twenty-one billion, nine hundred seventy million, four hundred thirty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.197043892 × 10¹⁰

Factors of 21970438920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1707

Divisors of 21970438920

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 27 30 34 36 40 43 45 51 54 60 68 72 85 86 90 102 108 120 129 135 136 153 170 172 180 204 215 216 255 258 270 289 306 340 344 360 387 408 430 459 510 516 540 578 612 645 680 731 765 774 860 867 918 1020 1032 1080 1156 1161 1224 1290 1445 1462 1530 1548 1637 1720 1734 1836 1935 2040 2193 2295 2312 2322 2580 2601 2890 2924 3060 3096 3274 3468 3655 3672 3870 4335 4386 4590 4644 4911 5160 5202 5780 5805 5848 6120 6548 6579 6936 7310 7740 7803 8185 8670 8772 9180 9288 9822 10404 10965 11560 11610 12427 13005 13096 13158 14620 14733 15480 15606 16370 17340 17544 18360 19644 19737 20808 21930 23220 24555 24854 26010 26316 27829 29240 29466 31212 32740 32895 34680 37281 39015 39288 39474 43860 44199 46440 49110 49708 52020 52632 55658 58932 62135 62424 65480 65790 70391 73665 74562 78030 78948 83487 87720 88398 98220 98685 99416 104040 111316 111843 117864 124270 131580 139145 140782 147330 149124 156060 157896 166974 176796 186405 196440 197370 211173 220995 222632 223686 248540 250461 263160 278290 281564 294660 298248 312120 333948 335529 351955 353592 372810 394740 417435 422346 441990 447372 473093 497080 500922 556580 559215 563128 589320 633519 667896 671058 703910 745620 751383 789480 834870 844692 883980 894744 946186 1001844 1055865 1113160 1118430 1196647 1252305 1267038 1342116 1407820 1419279 1491240 1502766 1669740 1677645 1689384 1767960 1892372 1900557 2003688 2111730 2236860 2365465 2393294 2504610 2534076 2684232 2815640 2838558 3005532 3167595 3339480 3355290 3589941 3756915 3784744 3801114 4223460 4257837 4473720 4730930 4786588 5009220 5068152 5677116 5983235 6011064 6335190 6710580 7096395 7179882 7513830 7602228 8446920 8515674 9461860 9502785 9573176 10018440 10769823 11354232 11966470 12670380 12773511 13421160 14192790 14359764 15027660 15204456 17031348 17949705 18923720 19005570 20342999 21289185 21539646 23932940 25340760 25547022 28385580 28719528 30055320 32309469 34062696 35899410 38011140 40685998 42578370 43079292 47865880 51094044 53849115 56771160 61028997 63867555 64618938 71798820 76022280 81371996 85156740 86158584 101714995 102188088 107698230 122057994 127735110 129237876 143597640 161547345 162743992 170313480 183086991 203429990 215396460 244115988 255470220 258475752 305144985 323094690 366173982 406859980 430792920 488231976 510940440 549260973 610289970 646189380 732347964 813719960 915434955 1098521946 1220579940 1292378760 1464695928 1830869910 2197043892 2441159880 2746304865 3661739820 4394087784 5492609730 7323479640 10985219460 21970438920
• Sum of all divisors σ(n): 79653974400
• Sum of proper divisors (its aliquot sum) s(n): 57683535480
• 21970438920 is an abundant number, because the sum of its proper divisors (57683535480) is greater than itself. Its abundance is 35713096560

Bases of 21970438920

• Binary: 10100011101100010100100101100001000₂
• Hexadecimal: 0x51D8A4B08
• Base-36: A3CMR60

Squares and roots of 21970438920

• 21970438920 squared (21970438920²) is 482700186337450766400
• 21970438920 cubed (21970438920³) is 10605134960599580571698388288000
• The square root of 21970438920 is 148224.2858643617
• The cube root of 21970438920 is 2800.7837482877

Scales and comparisons

• 21,970,438,920 seconds is equal to 698 years, 30 weeks, 5 days, 11 hours, 42 minutes.
• To count from 1 to 21,970,438,920 would take you about one thousand, three hundred ninety-seven 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 21970438920 cubic inches would be around 233.4 feet tall.

Recreational maths with 21970438920

• 21970438920 backwards is 02983407912
• 21970438920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21970438920's digits is 45
• More coming soon!