21389245020

Names of 21389245020

• Cardinal: 21389245020 can be written as Twenty-one billion, three hundred eighty-nine million, two hundred forty-five thousand and twenty.

Scientific notation

• Scientific notation: 2.138924502 × 10¹⁰

Factors of 21389245020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 183

Divisors of 21389245020

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 13 15 18 20 22 26 27 30 33 36 39 44 45 52 54 55 60 65 66 78 90 99 108 110 117 121 130 132 135 143 149 156 165 169 180 195 198 220 234 242 260 270 286 297 298 330 338 351 363 390 396 429 447 468 484 495 507 540 572 585 594 596 605 660 676 702 715 726 745 780 845 858 894 990 1014 1089 1170 1188 1210 1287 1341 1404 1430 1452 1485 1490 1521 1573 1639 1690 1716 1755 1788 1815 1859 1937 1980 2028 2145 2178 2197 2235 2340 2420 2535 2574 2682 2860 2970 2980 3042 3146 3267 3278 3380 3510 3630 3718 3861 3874 4023 4290 4356 4394 4470 4563 4719 4917 5070 5148 5364 5445 5577 5811 5940 6084 6292 6435 6534 6556 6591 6705 7020 7260 7436 7605 7722 7748 7865 8046 8195 8580 8788 8940 9126 9295 9438 9685 9834 10140 10890 10985 11154 11622 12870 13068 13182 13410 14157 14751 15210 15444 15730 16092 16335 16390 16731 17433 18029 18252 18590 18876 19305 19370 19668 19773 20115 20449 21307 21780 21970 22308 22815 23244 23595 24167 24585 25181 25740 26364 26820 27885 28314 29055 29502 30420 31460 32670 32780 32955 33462 34866 36058 37180 38610 38740 39546 40230 40898 42471 42614 43940 44253 45630 47190 48334 49170 50193 50362 52299 54087 55770 56628 58110 59004 59319 61347 63921 65340 65910 66924 69732 70785 72116 72501 73755 75543 77220 79092 80460 81796 83655 84942 85228 87165 88506 90145 91260 94380 96668 98340 98865 100386 100724 102245 104598 106535 108174 111540 116220 118638 120835 122694 125905 127842 131820 141570 145002 147510 151086 162261 167310 169884 174330 177012 180290 184041 191763 197730 200772 204490 209196 212355 213070 216348 217503 221265 226629 234377 237276 241670 245388 250965 251810 255684 261495 265837 270435 276991 283140 290004 295020 296595 302172 306735 319605 324522 327353 334620 348660 360580 362505 368082 377715 383526 395460 408980 424710 426140 435006 442530 453258 468754 483340 486783 501930 503620 522990 531674 540870 552123 553982 575289 593190 613470 639210 649044 652509 654706 679887 703131 725010 736164 755430 767052 797511 811305 830973 849420 870012 885060 906516 920205 937508 958815 973566 982059 1003860 1045980 1063348 1081740 1087515 1104246 1107964 1133145 1150578 1171885 1186380 1226940 1278420 1305018 1309412 1329185 1359774 1384955 1406262 1450020 1510860 1595022 1622610 1636765 1661946 1840410 1917630 1947132 1964118 2109393 2175030 2208492 2266290 2301156 2343770 2392533 2433915 2492919 2610036 2658370 2719548 2760615 2769910 2812524 2876445 2946177 3046901 3190044 3245220 3262545 3273530 3323892 3399435 3515655 3600883 3680820 3835260 3928236 3987555 4154865 4218786 4350060 4532580 4687540 4785066 4867830 4910295 4985838 5316740 5521230 5539820 5752890 5892354 6093802 6328179 6525090 6547060 6798870 7031310 7177599 7201766 7478757 7975110 8309730 8437572 8838531 9140703 9570132 9735660 9820590 9971676 10546965 10802649 11042460 11505780 11784708 11962665 12187604 12464595 12656358 13050180 13597740 14062620 14355198 14403532 14730885 14957514 15234505 15950220 16619460 17677062 18004415 18281406 19641180 21093930 21605298 23925330 24929190 25312716 27422109 28710396 29461770 29915028 30469010 31640895 32407947 35354124 35887995 36008830 36562812 37393785 39609713 42187860 43210596 44192655 45703515 47850660 49858380 54013245 54844218 58923540 60938020 63281790 64815894 71775990 72017660 74787570 79219426 82266327 88385310 91407030 97223841 108026490 109688436 118829139 126563580 129631788 137110545 143551980 149575140 158438852 162039735 164532654 176770620 182814060 194447682 198048565 216052980 237658278 274221090 324079470 329065308 356487417 388895364 396097130 411331635 475316556 486119205 548442180 594145695 648158940 712974834 792194260 822663270 972238410 1069462251 1188291390 1425949668 1645326540 1782437085 1944476820 2138924502 2376582780 3564874170 4277849004 5347311255 7129748340 10694622510 21389245020
• Sum of all divisors σ(n): 79768080000
• Sum of proper divisors (its aliquot sum) s(n): 58378834980
• 21389245020 is an abundant number, because the sum of its proper divisors (58378834980) is greater than itself. Its abundance is 36989589960

Bases of 21389245020

• Binary: 10011111010111001011111101001011100₂
• Hexadecimal: 0x4FAE5FA5C
• Base-36: 9TQLR30

Squares and roots of 21389245020

• 21389245020 squared (21389245020²) is 457499802525594800400
• 21389245020 cubed (21389245020³) is 9785575372821562006993594008000
• The square root of 21389245020 is 146250.6239986689
• The cube root of 21389245020 is 2775.8659211471

Scales and comparisons

• 21,389,245,020 seconds is equal to 680 years, 5 weeks, 5 days, 16 hours, 57 minutes.
• To count from 1 to 21,389,245,020 would take you about one thousand, three hundred sixty 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 21389245020 cubic inches would be around 231.3 feet tall.

Recreational maths with 21389245020

• 21389245020 backwards is 02054298312
• 21389245020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21389245020's digits is 36
• More coming soon!