21375981000

Names of 21375981000

• Cardinal: 21375981000 can be written as Twenty-one billion, three hundred seventy-five million, nine hundred eighty-one thousand.

Scientific notation

• Scientific notation: 2.1375981 × 10¹⁰

Factors of 21375981000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 748

Divisors of 21375981000

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 25 27 30 33 36 40 44 45 50 54 55 60 66 72 75 81 88 90 99 100 108 110 120 121 125 132 135 150 162 165 180 198 200 216 220 225 242 243 250 264 270 275 297 300 324 330 360 363 375 396 405 440 450 484 486 495 500 540 550 594 600 605 648 660 675 726 727 750 792 810 825 891 900 968 972 990 1000 1080 1089 1100 1125 1188 1210 1215 1320 1350 1375 1452 1454 1485 1500 1620 1650 1782 1800 1815 1944 1980 2025 2178 2181 2200 2250 2376 2420 2430 2475 2673 2700 2750 2904 2908 2970 3000 3025 3240 3267 3300 3375 3564 3630 3635 3960 4050 4125 4356 4362 4455 4500 4840 4860 4950 5346 5400 5445 5500 5816 5940 6050 6075 6534 6543 6600 6750 7128 7260 7270 7425 7997 8100 8250 8712 8724 8910 9000 9075 9720 9801 9900 10125 10692 10890 10905 11000 11880 12100 12150 12375 13068 13086 13365 13500 14520 14540 14850 15125 15994 16200 16335 16500 17448 17820 18150 18175 19602 19629 19800 20250 21384 21780 21810 22275 23991 24200 24300 24750 26136 26172 26730 27000 27225 29080 29403 29700 30250 30375 31988 32670 32715 33000 35640 36300 36350 37125 39204 39258 39985 40500 43560 43620 44550 45375 47982 48600 49005 49500 52344 53460 54450 54525 58806 58887 59400 60500 60750 63976 65340 65430 66825 71973 72600 72700 74250 78408 78516 79970 81000 81675 87240 87967 89100 90750 90875 95964 98010 98145 99000 106920 108900 109050 111375 117612 117774 119955 121000 121500 130680 130860 133650 136125 143946 145400 147015 148500 157032 159940 163350 163575 175934 176661 178200 181500 181750 191928 196020 196290 199925 215919 217800 218100 222750 235224 235548 239910 243000 245025 261720 263901 267300 272250 272625 287892 294030 294435 297000 319880 326700 327150 334125 351868 353322 359865 363000 363500 392040 392580 399850 408375 431838 436200 439835 445500 471096 479820 490050 490725 527802 534600 544500 545250 575784 588060 588870 599775 647757 653400 654300 668250 703736 706644 719730 727000 735075 785160 791703 799700 816750 817875 863676 879670 883305 891000 959640 980100 981450 999625 1055604 1079595 1089000 1090500 1176120 1177740 1199550 1225125 1295514 1308600 1319505 1336500 1413288 1439460 1470150 1472175 1583406 1599400 1633500 1635750 1727352 1759340 1766610 1799325 1943271 1960200 1962900 1999250 2111208 2159190 2181000 2199175 2355480 2375109 2399100 2450250 2453625 2591028 2639010 2673000 2878920 2940300 2944350 2998875 3166812 3238785 3267000 3271500 3518680 3533220 3598650 3675375 3886542 3925800 3958515 3998500 4318380 4398350 4416525 4750218 4798200 4900500 4907250 5182056 5278020 5397975 5880600 5888700 5997750 6333624 6477570 6543000 6597525 7066440 7125327 7197300 7350750 7360875 7773084 7917030 7997000 8636760 8796700 8833050 8996625 9500436 9716355 9801000 9814500 10556040 10795950 10995875 11777400 11875545 11995500 12955140 13195050 14250654 14394600 14701500 14721750 15546168 15834060 16193925 17593400 17666100 17993250 19000872 19432710 19629000 19792575 21375981 21591900 21991750 22082625 23751090 23991000 25910280 26390100 26989875 28501308 29403000 29443500 31668120 32387850 32987625 35332200 35626635 35986500 38865420 39585150 42751962 43183800 43983500 44165250 47502180 48581775 52780200 53979750 57002616 58887000 59377725 64775700 65975250 71253270 71973000 77730840 79170300 80969625 85503924 87967000 88330500 95004360 97163550 98962875 106879905 107959500 118755450 129551400 131950500 142506540 158340600 161939250 171007848 176661000 178133175 194327100 197925750 213759810 215919000 237510900 242908875 263901000 285013080 296888625 323878500 356266350 388654200 395851500 427519620 475021800 485817750 534399525 593777250 647757000 712532700 791703000 855039240 890665875 971635500 1068799050 1187554500 1425065400 1781331750 1943271000 2137598100 2375109000 2671997625 3562663500 4275196200 5343995250 7125327000 10687990500 21375981000
• Sum of all divisors σ(n): 82470810240
• Sum of proper divisors (its aliquot sum) s(n): 61094829240
• 21375981000 is an abundant number, because the sum of its proper divisors (61094829240) is greater than itself. Its abundance is 39718848240

Bases of 21375981000

• Binary: 10011111010000110111001010111001000₂
• Hexadecimal: 0x4FA1B95C8
• Base-36: 9TIPGI0

Squares and roots of 21375981000

• 21375981000 squared (21375981000²) is 456932563712361000000
• 21375981000 cubed (21375981000³) is 9767381800196718201141000000000
• The square root of 21375981000 is 146205.2700828531
• The cube root of 21375981000 is 2775.2920072555

Scales and comparisons

• 21,375,981,000 seconds is equal to 679 years, 35 weeks, 6 days, 4 hours, 30 minutes.
• To count from 1 to 21,375,981,000 would take you about one thousand, three hundred fifty-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 21375981000 cubic inches would be around 231.3 feet tall.

Recreational maths with 21375981000

• 21375981000 backwards is 00018957312
• 21375981000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21375981000's digits is 36
• More coming soon!