128155764664679040

Names of 128155764664679040

• Cardinal: 128155764664679040 can be written as One hundred twenty-eight quadrillion, one hundred fifty-five trillion, seven hundred sixty-four billion, six hundred sixty-four million, six hundred seventy-nine thousand and forty.

Scientific notation

• Scientific notation: 1.2815576466467904 × 10¹⁷

Factors of 128155764664679040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 305474620

Divisors of 128155764664679040

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 270 288 320 324 360 384 405 432 480 540 576 640 648 720 810 864 960 1080 1152 1296 1440 1620 1728 1920 2160 2592 2880 3240 3456 4320 5184 5760 6480 8093 8640 10368 12960 16186 17280 24279 25920 32372 40465 48558 51840 64744 72837 80930 97116 121395 129488 145674 161860 194232 218511 242790 258976 291348 323720 364185 388464 437022 485580 517952 582696 647440 655533 728370 776928 874044 971160 1035904 1092555 1165392 1294880 1311066 1456740 1553856 1748088 1942320 2185110 2330784 2589760 2622132 2913480 3107712 3277665 3496176 3884640 4370220 4661568 5179520 5244264 5826960 6555330 6992352 7769280 8740440 9323136 10488528 11653920 13110660 13984704 15538560 17480880 20977056 23307840 26221320 27969408 34961760 41954112 46615680 52442640 69923520 83908224 104885280 139847040 209770560 305466517 419541120 610933034 916399551 1221866068 1527332585 1832799102 2443732136 2749198653 3054665170 3665598204 4581997755 4887464272 5498397306 6109330340 7331196408 8247595959 9163995510 9774928544 10996794612 12218660680 13745993265 14662392816 16495191918 18327991020 19549857088 21993589224 24437321360 24742787877 27491986530 29324785632 32990383836 36655982040 39099714176 41237979795 43987178448 48874642720 49485575754 54983973060 58649571264 65980767672 73311964080 82475959590 87974356896 97749285440 98971151508 109967946120 117299142528 123713939385 131961535344 146623928160 164951919180 175948713792 195498570880 197942303016 219935892240 247427878770 263923070688 293247856320 329903838360 351897427584 395884606032 439871784480 494855757540 527846141376 586495712640 659807676720 791769212064 879743568960 989711515080 1055692282752 1319615353440 1583538424128 1759487137920 1979423030160 2472140522081 2639230706880 3167076848256 3958846060320 4944281044162 5278461413760 7416421566243 7917692120640 9888562088324 12360702610405 14832843132486 15835384241280 19777124176648 22249264698729 24721405220810 29665686264972 37082107831215 39554248353296 44498529397458 49442810441620 59331372529944 66747794096187 74164215662430 79108496706592 88997058794916 98885620883240 111246323493645 118662745059888 133495588192374 148328431324860 158216993413184 177994117589832 197771241766480 200243382288561 222492646987290 237325490119776 266991176384748 296656862649720 316433986826368 333738970480935 355988235179664 395542483532960 400486764577122 444985293974580 474650980239552 533982352769496 593313725299440 667477940961870 711976470359328 791084967065920 800973529154244 889970587949160 949301960479104 1001216911442805 1067964705538992 1186627450598880 1334955881923740 1423952940718656 1582169934131840 1601947058308488 1779941175898320 2002433822885610 2135929411077984 2373254901197760 2669911763847480 2847905881437312 3203894116616976 3559882351796640 4004867645771220 4271858822155968 4746509802395520 5339823527694960 6407788233233952 7119764703593280 8009735291542440 8543717644311936 10679647055389920 12815576466467904 14239529407186560 16019470583084880 21359294110779840 25631152932935808 32038941166169760 42718588221559680 64077882332339520 128155764664679040
• Sum of all divisors σ(n): 457723927367589960
• Sum of proper divisors (its aliquot sum) s(n): 329568162702910920
• 128155764664679040 is an abundant number, because the sum of its proper divisors (329568162702910920) is greater than itself. Its abundance is 201412398038231880

Bases of 128155764664679040

• Binary: 111000111010011001111110100101100110000011011101010000000₂
• Hexadecimal: 0x1C74CFD2CC1BA80
• Base-36: Z1VFDITK800

Squares and roots of 128155764664679040

• 128155764664679040 squared (128155764664679040²) is 16423900016788596813771346215321600
• 128155764664679040 cubed (128155764664679040³) is 2104817465427777547371861008657645335609994379264000
• The square root of 128155764664679040 is 357988497.9502540387
• The cube root of 128155764664679040 is 504172.7654026009

Scales and comparisons

• 128,155,764,664,679,040 seconds is equal to 4,074,956,904 years, 27 weeks, 3 days, 14 hours, 24 minutes.
• To count from 1 to 128,155,764,664,679,040 would take you about twelve billion, two hundred twenty-four million, eight hundred seventy thousand, seven hundred thirteen 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 128155764664679040 cubic inches would be around 42014.4 feet tall.

Recreational maths with 128155764664679040

• 128155764664679040 backwards is 040976466467551821
• 128155764664679040 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 128155764664679040's digits is 81
• More coming soon!