81640752740352

Names of 81640752740352

• Cardinal: 81640752740352 can be written as Eighty-one trillion, six hundred forty billion, seven hundred fifty-two million, seven hundred forty thousand, three hundred fifty-two.

Scientific notation

• Scientific notation: 8.1640752740352 × 10¹³

Factors of 81640752740352

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 10675

Divisors of 81640752740352

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 128 144 156 192 208 216 234 256 288 312 351 384 416 432 468 512 576 624 702 768 832 864 936 1024 1152 1248 1404 1536 1664 1728 1872 2048 2304 2496 2808 3072 3328 3456 3744 4608 4992 5616 6144 6656 6912 7488 9216 9984 10657 11232 13312 13824 14976 18432 19968 21314 22464 26624 27648 29952 31971 39936 42628 44928 55296 59904 63942 79872 85256 89856 95913 119808 127884 138541 170512 179712 191826 239616 255768 277082 287739 341024 359424 383652 415623 511536 554164 575478 682048 718848 767304 831246 1023072 1108328 1150956 1246869 1364096 1534608 1662492 2046144 2216656 2301912 2493738 2728192 3069216 3324984 3740607 4092288 4433312 4603824 4987476 5456384 6138432 6649968 7481214 8184576 8866624 9207648 9974952 10912768 12276864 13299936 14962428 16369152 17733248 18415296 19949904 21825536 24553728 26599872 29924856 32738304 35466496 36830592 39899808 49107456 53199744 59849712 65476608 70932992 73661184 79799616 98214912 106399488 113571649 119699424 141865984 147322368 159599232 196429824 212798976 227143298 239398848 283731968 294644736 319198464 340714947 425597952 454286596 478797696 589289472 638396928 681429894 851195904 908573192 957595392 1022144841 1276793856 1362859788 1476431437 1817146384 1915190784 2044289682 2553587712 2725719576 2952862874 3066434523 3634292768 3830381568 4088579364 4429294311 5451439152 5905725748 6132869046 7268585536 7660763136 8177158728 8858588622 10902878304 11811451496 12265738092 13287882933 14537171072 16354317456 17717177244 21805756608 23622902992 24531476184 26575765866 29074342144 32708634912 35434354488 39863648799 43611513216 47245805984 49062952368 53151531732 58148684288 65417269824 70868708976 79727297598 87223026432 94491611968 98125904736 106303063464 116297368576 130834539648 141737417952 159454595196 174446052864 188983223936 196251809472 212606126928 232594737152 261669079296 283474835904 318909190392 348892105728 377966447872 392503618944 425212253856 523338158592 566949671808 637818380784 697784211456 755932895744 785007237888 850424507712 1046676317184 1133899343616 1275636761568 1511865791488 1570014475776 1700849015424 2093352634368 2267798687232 2551273523136 3023731582976 3140028951552 3401698030848 4535597374464 5102547046272 6280057903104 6803396061696 9071194748928 10205094092544 13606792123392 20410188185088 27213584246784 40820376370176 81640752740352
• Sum of all divisors σ(n): 260466946412400
• Sum of proper divisors (its aliquot sum) s(n): 178826193672048
• 81640752740352 is an abundant number, because the sum of its proper divisors (178826193672048) is greater than itself. Its abundance is 97185440931696

Bases of 81640752740352

• Binary: 10010100100000001111000000100001111100000000000₂
• Hexadecimal: 0x4A407810F800
• Base-36: SXT8SA2O0

Squares and roots of 81640752740352

• 81640752740352 squared (81640752740352²) is 6665212508011292597529083904
• 81640752740352 cubed (81640752740352³) is 544152966328451362885484248959508134494208
• The square root of 81640752740352 is 9035527.2530357629
• The cube root of 81640752740352 is 43381.2771393691

Scales and comparisons

• 81,640,752,740,352 seconds is equal to 2,595,923 years, 21 weeks, 16 hours, 19 minutes, 12 seconds.
• To count from 1 to 81,640,752,740,352 would take you about six million, four hundred eighty-nine thousand, eight hundred eight 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 81640752740352 cubic inches would be around 3615.1 feet tall.

Recreational maths with 81640752740352

• 81640752740352 backwards is 25304725704618
• 81640752740352 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81640752740352's digits is 54
• More coming soon!