81428039136080

Names of 81428039136080

• Cardinal: 81428039136080 can be written as Eighty-one trillion, four hundred twenty-eight billion, thirty-nine million, one hundred thirty-six thousand and eighty.

Scientific notation

• Scientific notation: 8.142803913608 × 10¹³

Factors of 81428039136080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1323

Divisors of 81428039136080

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 19 20 26 28 35 38 40 52 56 65 70 76 80 91 95 104 112 130 133 140 152 182 190 208 247 260 266 280 304 361 364 380 455 494 520 532 560 665 722 728 760 910 988 1040 1064 1235 1277 1330 1444 1456 1520 1729 1805 1820 1976 2128 2470 2527 2554 2660 2888 3458 3610 3640 3952 4693 4940 5054 5108 5320 5776 6385 6859 6916 7220 7280 8645 8939 9386 9880 10108 10216 10640 12635 12770 13718 13832 14440 16601 17290 17878 18772 19760 20216 20432 23465 24263 25270 25540 27436 27664 28880 32851 33202 34295 34580 35756 37544 40432 44695 46930 48013 48526 50540 51080 54872 65702 66404 68590 69160 71512 75088 83005 89167 89390 93860 96026 97052 101080 102160 109744 116207 121315 131404 132808 137180 138320 143024 164255 166010 169841 178334 178780 187720 192052 194104 202160 232414 240065 242630 262808 265616 274360 315419 328510 332020 339682 356668 357560 375440 384104 388208 445835 460997 464828 480130 485260 525616 548720 581035 624169 630838 657020 664040 679364 713336 715120 768208 849205 891670 921994 929656 960260 970520 1162070 1248338 1261676 1314040 1328080 1358728 1426672 1577095 1630729 1698410 1783340 1843988 1859312 1920520 1941040 2207933 2304985 2324140 2496676 2523352 2628080 2717456 3120845 3154190 3226979 3261458 3396820 3566680 3687976 3841040 4415866 4609970 4648280 4993352 5046704 5992961 6241690 6308380 6453958 6522916 6793640 7133360 7375952 8153645 8758943 8831732 9219940 9296560 9986704 11039665 11415103 11985922 12483380 12616760 12907916 13045832 13587280 16134895 16307290 17517886 17663464 18439880 21199477 22079330 22830206 23971844 24966760 25233520 25815832 26091664 29964805 30983851 32269790 32614580 35035772 35326928 36879760 41950727 42398954 43794715 44158660 45660412 47943688 49933520 51631664 57075515 59929610 61312601 61967702 64539580 65229160 70071544 83901454 84797908 87589430 88317320 91320824 95887376 105997385 113866259 114151030 119859220 122625202 123935404 129079160 130458320 140143088 148396339 154919255 167802908 169595816 175178860 176634640 182641648 209753635 211994770 216886957 227732518 228302060 239718440 245250404 247870808 258158320 296792678 306563005 309838510 335605816 339191632 350357720 402790063 419507270 423989540 433773914 455465036 456604120 479436880 490500808 495741616 569331295 588693169 593585356 613126010 619677020 671211632 700715440 741981695 797063813 805580126 839014540 847979080 867547828 910930072 913208240 981001616 1084434785 1138662590 1177386338 1187170712 1226252020 1239354040 1483963390 1594127626 1611160252 1678029080 1695958160 1735095656 1821860144 2013950315 2168869570 2277325180 2354772676 2374341424 2452504040 2478708080 2819530441 2943465845 2967926780 3188255252 3222320504 3356058160 3470191312 3985319065 4027900630 4120852183 4337739140 4554650360 4709545352 4905008080 5639060882 5886931690 5935853560 6376510504 6444641008 7653011197 7970638130 8055801260 8241704366 8675478280 9109300720 9419090704 11185170211 11278121764 11773863380 11871707120 12753021008 14097652205 15306022394 15941276260 16111602520 16483408732 17350956560 20604260915 22370340422 22556243528 23547726760 28195304410 30612044788 31882552520 32223205040 32966817464 38265055985 41208521830 44740680844 45112487056 47095453520 53571078379 55925851055 56390608820 61224089576 63765105040 65933634928 76530111970 78296191477 82417043660 89481361688 107142156758 111851702110 112781217640 122448179152 145407212743 153060223940 156592382954 164834087320 178962723376 214284313516 223703404220 225562435280 267855391895 290814425486 306120447880 313184765908 329668174640 391480957385 428568627032 447406808440 535710783790 581628850972 612240895760 626369531816 727036063715 782961914770 857137254064 894813616880 1017850489201 1071421567580 1163257701944 1252739063632 1454072127430 1565923829540 2035700978402 2142843135160 2326515403888 2908144254860 3131847659080 4071401956804 4285686270320 5089252446005 5816288509720 6263695318160 8142803913608 10178504892010 11632577019440 16285607827216 20357009784020 40714019568040 81428039136080
• Sum of all divisors σ(n): 246145301525760
• Sum of proper divisors (its aliquot sum) s(n): 164717262389680
• 81428039136080 is an abundant number, because the sum of its proper divisors (164717262389680) is greater than itself. Its abundance is 83289223253600

Bases of 81428039136080

• Binary: 10010100000111011110001010110001111001101010000₂
• Hexadecimal: 0x4A0EF158F350
• Base-36: SV3IW3B68

Squares and roots of 81428039136080

• 81428039136080 squared (81428039136080²) is 6630525557546976112757766400
• 81428039136080 cubed (81428039136080³) is 539910694592713833112700309396166451712000
• The square root of 81428039136080 is 9023748.6188435013
• The cube root of 81428039136080 is 43343.5679748859

Scales and comparisons

• 81,428,039,136,080 seconds is equal to 2,589,159 years, 40 weeks, 16 hours, 1 minute, 20 seconds.
• To count from 1 to 81,428,039,136,080 would take you about six million, four hundred seventy-two thousand, eight hundred ninety-nine 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 81428039136080 cubic inches would be around 3612 feet tall.

Recreational maths with 81428039136080

• 81428039136080 backwards is 08063193082418
• The number of decimal digits it has is: 14
• The sum of 81428039136080's digits is 53
• More coming soon!