640404983012510790

Names of 640404983012510790

• Cardinal: 640404983012510790 can be written as Six hundred forty quadrillion, four hundred four trillion, nine hundred eighty-three billion, twelve million, five hundred ten thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 6.4040498301251079 × 10¹⁷

Factors of 640404983012510790

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 25651002

Divisors of 640404983012510790

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 30 31 45 61 62 90 93 122 155 183 186 279 305 310 366 465 549 558 610 915 930 961 1098 1395 1830 1891 1922 2745 2790 2883 3782 4733 4805 5490 5673 5766 8649 9455 9466 9610 11346 14199 14415 17019 17298 18910 23665 28365 28398 28830 34038 42597 43245 47330 56730 58621 70995 85095 85194 86490 117242 141990 146723 170190 175863 212985 288713 293105 293446 351726 425970 440169 527589 577426 586210 733615 866139 879315 880338 1055178 1320507 1443565 1467230 1732278 1758630 2200845 2598417 2637945 2641014 2887130 4330695 4401690 4548413 5196834 5275890 6602535 8661390 8950103 9096826 12992085 13205070 13645239 17900206 22742065 25646167 25984170 26850309 27290478 40935717 44750515 45484130 51292334 53700618 68226195 76938501 80550927 81871434 89501030 128230835 134251545 136452390 153877002 161101854 204678585 230815503 256461670 268503090 277453193 384692505 402754635 409357170 461631006 554906386 769385010 795031177 805509270 832359579 1154077515 1387265965 1564416187 1590062354 1664719158 2308155030 2385093531 2497078737 2774531930 3128832374 3975155885 4161797895 4693248561 4770187062 4994157474 7155280593 7822080935 7950311770 8323595790 9386497122 11925467655 12485393685 14079745683 14310561186 15644161870 23466242805 23850935310 24645966487 24970787370 28159491366 35776402965 46932485610 48496901797 49291932974 70398728415 71552805930 73937899461 96993803594 121383308411 123229832435 140797456830 145490705391 147875798922 221813698383 242484508985 242766616822 246459664870 290981410782 364149925233 369689497305 436472116173 443627396766 484969017970 606916542055 727453526955 728299850466 739378994610 872944232346 1092449775699 1109068491915 1213833084110 1454907053910 1503403955707 1820749626165 2182360580865 2184899551398 2218136983830 3006807911414 3641499252330 3762882560741 4364721161730 4510211867121 5462248878495 7404381813071 7517019778535 7525765121482 9020423734242 10924497756990 11288647682223 13530635601363 14808763626142 15034039557070 18814412803705 22213145439213 22551059335605 22577295364446 27061271202726 33865943046669 37021909065355 37628825607410 44426290878426 45102118671210 56443238411115 66639436317639 67653178006815 67731886093338 74043818130710 111065727196065 112886476822230 116649359382971 133278872635278 135306356013630 169329715233345 222131454392130 229535836205201 233298718765942 333197181588195 338659430466690 349948078148913 459071672410402 583246796914855 666394363176390 688607508615603 699896156297826 1049844234446739 1147679181026005 1166493593829710 1377215017231206 1749740390744565 2065822525846809 2099688468893478 2295358362052010 3443037543078015 3499480781489130 4131645051693618 5249221172233695 6886075086156030 7115610922361231 10329112629234045 10498442344467390 14231221844722462 20658225258468090 21346832767083693 35578054611806155 42693665534167386 64040498301251079 71156109223612310 106734163835418465 128080996602502158 213468327670836930 320202491506255395 640404983012510790
• Sum of all divisors σ(n): 1749071373426606528
• Sum of proper divisors (its aliquot sum) s(n): 1108666390414095738
• 640404983012510790 is an abundant number, because the sum of its proper divisors (1108666390414095738) is greater than itself. Its abundance is 468261407401584948

Bases of 640404983012510790

• Binary: 100011100011001011001111000001100100110110011100110001000110₂
• Hexadecimal: 0x8E32CF064D9CC46
• Base-36: 4V5OMBQUZ8LI

Squares and roots of 640404983012510790

• 640404983012510790 squared (640404983012510790²) is 410118542267254233514689659866424100
• 640404983012510790 cubed (640404983012510790³) is 262641958093776635828064603469146352281050559966039000
• The square root of 640404983012510790 is 800253074.3536764381
• The cube root of 640404983012510790 is 861955.6104874317

Scales and comparisons

• 640,404,983,012,510,790 seconds is equal to 20,362,897,557 years, 6 weeks, 2 days, 22 hours, 46 minutes, 30 seconds.
• To count from 1 to 640,404,983,012,510,790 would take you about sixty-one billion, eighty-eight million, six hundred ninety-two thousand, six hundred seventy-one 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 640404983012510790 cubic inches would be around 71829.6 feet tall.

Recreational maths with 640404983012510790

• 640404983012510790 backwards is 097015210389404046
• The number of decimal digits it has is: 18
• The sum of 640404983012510790's digits is 63
• More coming soon!