21242645970

Names of 21242645970

• Cardinal: 21242645970 can be written as Twenty-one billion, two hundred forty-two million, six hundred forty-five thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 2.124264597 × 10¹⁰

Factors of 21242645970

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 441

Divisors of 21242645970

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 10 13 14 15 17 21 26 30 34 35 39 42 51 65 70 78 85 91 102 105 119 130 137 169 170 182 195 210 221 238 255 257 273 274 338 357 390 411 442 455 507 510 514 546 595 663 685 714 771 822 845 910 959 1014 1105 1183 1190 1285 1326 1365 1370 1542 1547 1690 1781 1785 1799 1918 2055 2210 2329 2366 2535 2570 2730 2873 2877 3094 3315 3341 3549 3562 3570 3598 3855 4110 4369 4641 4658 4795 5070 5343 5397 5746 5754 5915 6630 6682 6987 7098 7710 7735 8619 8738 8905 8995 9282 9590 10023 10686 10794 11645 11830 12467 13107 13974 14365 14385 15470 16303 16705 17238 17745 17810 17990 20046 20111 21845 23153 23205 23290 23387 24934 26214 26715 26985 28730 28770 30277 30583 32606 33410 34935 35209 35490 37401 40222 43095 43433 43690 46306 46410 46774 48909 50115 53430 53970 56797 60333 60554 61166 62335 65535 69459 69870 70161 70418 74802 81515 86190 86866 90831 91749 97818 100230 100555 105627 113594 115765 116935 120666 124670 130299 131070 138918 140322 151385 152915 162071 163030 170391 176045 181662 183498 187005 201110 211254 211939 217165 231530 233870 244545 246463 260598 283985 301665 302770 304031 305830 324142 340782 347295 350805 352090 374010 393601 397579 423878 434330 454155 457717 458745 486213 489090 492926 528135 567970 598553 603330 608062 635817 651495 694590 701610 738361 739389 787202 795158 810355 851955 908310 912093 915434 917490 972426 1056270 1059695 1180803 1192737 1197106 1232315 1271634 1302990 1373151 1476722 1478778 1520155 1620710 1703910 1795659 1824186 1968005 1987895 2119390 2215083 2288585 2361606 2385474 2431065 2464630 2746302 2755207 2992765 3040310 3179085 3204019 3591318 3691805 3696945 3936010 3975790 4189871 4430166 4560465 4577170 4862130 5168527 5510414 5904015 5950321 5963685 5985530 6358170 6408038 6865755 7383610 7393890 7781189 8265621 8379742 8978295 9120930 9612057 10337054 11075415 11808030 11900642 11927370 12569613 13731510 13776035 15505581 15562378 16020095 16531242 17850963 17956590 19224114 20949355 22150830 23343567 25139226 25842635 27552070 29751605 31011162 32040190 35701926 38905945 41328105 41652247 41898710 46687134 48060285 51685270 54468323 59503210 62848065 77527905 77811890 82656210 83304494 89254815 96120570 101155457 108936646 116717835 124956741 125696130 155055810 163404969 178509630 202310914 208261235 233435670 249913482 272341615 303466371 326809938 416522470 505777285 544683230 606932742 624783705 708088199 817024845 1011554570 1249567410 1416176398 1517331855 1634049690 2124264597 3034663710 3540440995 4248529194 7080881990 10621322985 21242645970
• Sum of all divisors σ(n): 67553035776
• Sum of proper divisors (its aliquot sum) s(n): 46310389806
• 21242645970 is an abundant number, because the sum of its proper divisors (46310389806) is greater than itself. Its abundance is 25067743836

Bases of 21242645970

• Binary: 10011110010001010010000110111010010₂
• Hexadecimal: 0x4F2290DD2
• Base-36: 9RBBMJ6

Squares and roots of 21242645970

• 21242645970 squared (21242645970²) is 451250007806757240900
• 21242645970 cubed (21242645970³) is 9585744159798680242172704173000
• The square root of 21242645970 is 145748.5710736129
• The cube root of 21242645970 is 2769.5095714091

Scales and comparisons

• 21,242,645,970 seconds is equal to 675 years, 23 weeks, 2 days, 22 hours, 59 minutes, 30 seconds.
• To count from 1 to 21,242,645,970 would take you about one thousand, three hundred fifty 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 21242645970 cubic inches would be around 230.8 feet tall.

Recreational maths with 21242645970

• 21242645970 backwards is 07954624212
• 21242645970 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21242645970's digits is 42
• More coming soon!