21142587620

Names of 21142587620

• Cardinal: 21142587620 can be written as Twenty-one billion, one hundred forty-two million, five hundred eighty-seven thousand, six hundred twenty.

Scientific notation

• Scientific notation: 2.114258762 × 10¹⁰

Factors of 21142587620

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 634

Divisors of 21142587620

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 10 11 14 20 22 23 28 35 44 46 49 55 70 77 92 98 110 115 140 154 161 196 220 230 245 253 269 308 317 322 385 460 490 506 538 539 634 644 770 805 980 1012 1076 1078 1127 1265 1268 1345 1540 1585 1610 1771 1883 2156 2219 2254 2530 2690 2695 2959 3170 3220 3487 3542 3766 4438 4508 5060 5380 5390 5635 5918 6187 6340 6974 7084 7291 7532 8855 8876 9415 10780 11095 11270 11836 12374 12397 13181 13948 14582 14795 15533 17435 17710 18830 20713 22190 22540 24409 24748 24794 26362 29164 29590 30935 31066 34870 35420 36455 37660 41426 43309 44380 48818 49588 51037 52724 59180 61870 61985 62132 65905 68057 69740 72910 77665 80201 82852 85273 86618 97636 102074 103565 122045 123740 123970 131810 136114 144991 145820 155330 160402 170546 170863 173236 204148 207130 216545 244090 247940 255185 263620 272228 289982 303163 310660 320804 340285 341092 341726 357259 401005 414260 426365 433090 476399 488180 510370 561407 579964 596911 606326 680570 683452 714518 724955 802010 852730 854315 866180 938003 952798 1020740 1122814 1193822 1212652 1361140 1429036 1449910 1515815 1604020 1705460 1708630 1786295 1876006 1905596 1961279 2245628 2381995 2387644 2807035 2899820 2984555 3031630 3334793 3417260 3572590 3752012 3922558 3929849 4178377 4690015 4763990 5614070 5969110 6063260 6566021 6669586 7145180 7845116 7859698 8356754 9380030 9527980 9806395 11228140 11938220 13132042 13339172 13728953 15719396 16673965 16713508 18760060 19612790 19649245 20891885 21574069 26264084 27457906 32830105 33347930 39225580 39298490 41783770 43148138 45962147 54915812 65660210 66695860 68644765 78596980 83567540 86296276 91924294 96102671 107870345 131320420 137289530 151018483 183848588 192205342 215740690 229810735 274579060 302036966 384410684 431481380 459621470 480513355 604073932 755092415 919242940 961026710 1057129381 1510184830 1922053420 2114258762 3020369660 4228517524 5285646905 10571293810 21142587620
• Sum of all divisors σ(n): 59198065920
• Sum of proper divisors (its aliquot sum) s(n): 38055478300
• 21142587620 is an abundant number, because the sum of its proper divisors (38055478300) is greater than itself. Its abundance is 16912890680

Bases of 21142587620

• Binary: 10011101100001100100100100011100100₂
• Hexadecimal: 0x4EC3248E4
• Base-36: 9PNR10K

Squares and roots of 21142587620

• 21142587620 squared (21142587620²) is 447009011269377264400
• 21142587620 cubed (21142587620³) is 9450927187692376235412906728000
• The square root of 21142587620 is 145404.9092018561
• The cube root of 21142587620 is 2765.1543576701

Scales and comparisons

• 21,142,587,620 seconds is equal to 672 years, 13 weeks, 6 days, 21 hours, 20 seconds.
• To count from 1 to 21,142,587,620 would take you about one thousand, three hundred forty-four 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 21142587620 cubic inches would be around 230.4 feet tall.

Recreational maths with 21142587620

• 21142587620 backwards is 02678524112
• The number of decimal digits it has is: 11
• The sum of 21142587620's digits is 38
• More coming soon!