21007756343422772

Names of 21007756343422772

• Cardinal: 21007756343422772 can be written as Twenty-one quadrillion, seven trillion, seven hundred fifty-six billion, three hundred forty-three million, four hundred twenty-two thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 2.1007756343422772 × 10¹⁶

Factors of 21007756343422772

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 78

Divisors of 21007756343422772

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 4 7 11 14 17 22 28 34 41 44 68 77 82 119 154 164 187 238 287 289 308 374 451 476 574 578 697 748 902 1148 1156 1309 1394 1681 1804 2023 2618 2788 3157 3179 3362 4046 4879 4913 5236 6314 6358 6724 7667 8092 9758 9826 11767 11849 12628 12716 15334 18491 19516 19652 22253 23534 23698 28577 30668 34391 36982 44506 47068 47396 53669 54043 57154 68782 68921 73964 82943 83521 89012 107338 108086 114308 129437 130339 137564 137842 165886 167042 200039 201433 214676 216172 258874 260678 275684 314347 331772 334084 378301 400078 402866 482447 485809 517748 521356 584647 628694 756602 758131 800156 805732 912373 918731 964894 971618 1169294 1171657 1257388 1410031 1419857 1513204 1516262 1824746 1837462 1929788 1943236 2200429 2215763 2338588 2343314 2820062 2825761 2839714 3032524 3400663 3424361 3649492 3674924 4400858 4431526 4686628 5306917 5343899 5640124 5651522 5679428 6431117 6801326 6848722 8201599 8258753 8801716 8863052 9938999 10613834 10687798 11303044 12862234 12888227 13602652 13697444 15510341 15618427 16403198 16517506 19780327 19877998 19918169 21227668 21375596 23970527 24137569 25724468 25776454 31020682 31083371 31236854 32806396 33035012 37407293 37667971 39560654 39755996 39836338 47941054 48037937 48275138 51552908 57811271 58214137 62041364 62166742 62473708 74814586 75335942 79121308 79672676 90217589 90846283 95882108 96075874 96550276 109328989 115622542 116428274 124333484 139427183 140398801 149629172 150671884 168962983 180435178 181692566 192151748 217583597 218657978 219099859 231245084 232856548 263675797 265513259 278854366 280797602 336265559 337925966 338608873 360870356 363385132 407498959 435167194 437315956 438199718 527351594 528417307 531026518 557708732 561595204 635923981 640355507 672531118 675851932 677217746 814997918 816644929 870334388 876399436 982791607 989640329 1054703188 1056834614 1062053036 1271847962 1280711014 1345062236 1354435492 1533699013 1544386811 1629995836 1633289858 1858592813 1965583214 1979280658 2113669228 2370262111 2386779617 2543695924 2561422028 3067398026 3088773622 3266579716 3698921149 3717185626 3724697603 3931166428 3958561316 4482488549 4740524222 4773559234 5716514503 5756350841 6134796052 6177547244 6927482303 7397842298 7434371252 7449395206 8964977098 8983094219 9481048444 9547118468 10810707677 10886043619 11433029006 11512701682 13854964606 13882963793 14795684596 14898790412 16707457319 17929954196 17966188438 21621415354 21772087238 22866058012 23025403364 26072883221 26254575787 27709929212 27765927586 33414914638 35932376876 40294455887 40575253489 43242830708 43544174476 52145766442 52509151574 55531855172 62881659533 63319859251 66829829276 76202305333 80588911774 81150506978 97180746551 97857964297 104291532884 105018303148 125763319066 126639718502 152404610666 152712601723 161177823548 162301013956 183782030509 194361493102 195715928594 236010384481 251526638132 253279437004 284026774423 304809221332 305425203446 367564061018 388722986204 391431857188 443239014757 446327788379 472020768962 568053548846 610850406892 685005750079 735128122036 886478029514 892655576758 944041537924 1068988212061 1076437607267 1136107097692 1370011500158 1652072691367 1663585393049 1772956059028 1785311153516 2137976424122 2152875214534 2596114229291 2740023000316 3124294518653 3304145382734 3327170786098 4012176536177 4275952848244 4305750429068 5192228458582 6248589037306 6608290765468 6654341572196 7535063250869 8024353072354 10384456917164 11645097751343 12497178074612 15070126501738 16048706144708 18172799605037 18299439323539 23290195502686 28085235753239 30140253003476 36345599210074 36598878647078 44133941897947 46580391005372 56170471506478 68207001115009 72691198420148 73197757294156 88267883795894 112340943012956 128096075264773 136414002230018 176535767591788 256192150529546 272828004460036 308937593285629 477449007805063 512384301059092 617875186571258 750277012265099 954898015610126 1235750373142516 1500554024530198 1909796031220252 3001108049060396 5251939085855693 10503878171711386 21007756343422772
• Sum of all divisors σ(n): 49917293213514720
• Sum of proper divisors (its aliquot sum) s(n): 28909536870091948
• 21007756343422772 is an abundant number, because the sum of its proper divisors (28909536870091948) is greater than itself. Its abundance is 7901780526669176

Bases of 21007756343422772

• Binary: 1001010101000100111000101101110011000001010111100110100₂
• Hexadecimal: 0x4AA2716E60AF34
• Base-36: 5QUMM16OFN8

Squares and roots of 21007756343422772

• 21007756343422772 squared (21007756343422772²) is 441325826584619715978464328163984
• 21007756343422772 cubed (21007756343422772³) is 9271265432949343066946275287949815741097055843648
• The square root of 21007756343422772 is 144940526.9185357005
• The cube root of 21007756343422772 is 275926.3803830937

Scales and comparisons

• 21,007,756,343,422,772 seconds is equal to 667,981,670 years, 24 weeks, 20 hours, 59 minutes, 32 seconds.
• To count from 1 to 21,007,756,343,422,772 would take you about two billion, three million, nine hundred forty-five thousand and eleven 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 21007756343422772 cubic inches would be around 22993.9 feet tall.

Recreational maths with 21007756343422772

• 21007756343422772 backwards is 27722434365770012
• The number of decimal digits it has is: 17
• The sum of 21007756343422772's digits is 62
• More coming soon!