81437876423816

Names of 81437876423816

• Cardinal: 81437876423816 can be written as Eighty-one trillion, four hundred thirty-seven billion, eight hundred seventy-six million, four hundred twenty-three thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 8.1437876423816 × 10¹³

Factors of 81437876423816

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 36908

Divisors of 81437876423816

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 8 11 17 22 29 31 34 44 58 62 68 88 97 116 124 136 187 194 232 248 289 319 341 374 388 493 527 578 638 682 748 776 899 986 1054 1067 1156 1276 1364 1496 1649 1798 1972 2108 2134 2312 2552 2728 2813 3007 3179 3298 3596 3944 4216 4268 5423 5626 5797 6014 6358 6596 7192 8381 8536 8959 9889 10846 11252 11594 12028 12716 13192 15283 16762 17918 18139 19778 21692 22504 23188 24056 25432 28033 30566 30943 33077 33524 35836 36278 36721 39556 43384 46376 47821 51119 56066 61132 61886 66154 67048 71672 72556 73442 79112 87203 92191 95642 98549 102238 112132 122264 123772 132308 145112 146884 168113 174406 184382 191284 197098 204476 224264 247544 259811 264616 293768 308363 336226 348812 368764 382568 394196 403931 408952 519622 526031 562309 616726 624257 672452 697624 737528 788392 807862 812957 869023 959233 1039244 1052062 1064909 1124618 1138351 1233452 1248514 1344904 1482451 1615724 1625914 1738046 1918466 2078488 2104124 2129818 2249236 2276702 2466904 2497028 2857921 2964902 3231448 3251828 3476092 3561937 3836932 4208248 4259636 4498472 4553404 4994056 5715842 5929804 6503656 6866827 6952184 7123874 7673864 8519272 8942527 9106808 9559253 10612369 11431684 11713999 11859608 12521861 13733654 14247748 16306961 17885054 18103453 19118506 19351967 21224738 22863368 23427998 25043722 25201667 27467308 28495496 32613922 33012179 35770108 36206906 38237012 38703934 39181307 42449476 46855996 50087444 50403334 54934616 60552929 65227844 66024358 71540216 72413812 76474024 77407868 78362614 84898952 93711992 100174888 100806668 103296173 110420047 116736059 121105858 130455688 132048716 144827624 154815736 156725228 199137983 201613336 206592346 212871637 220840094 233472118 242211716 264097432 277218337 307758701 313450456 328983439 363133969 398275966 413184692 425743274 441680188 466944236 484423432 554436674 561207043 615517402 657966878 666082219 726267938 796551932 826369384 851486548 883360376 933888472 1029399793 1108873348 1122414086 1136257903 1214620517 1231034804 1315933756 1332164438 1452535876 1593103864 1702973096 1756034941 1877140799 2058799586 2217746696 2244828172 2272515806 2429241034 2462069608 2631867512 2664328876 2905071752 3202181363 3385345711 3512069882 3618817829 3754281598 4117599172 4489656344 4545031612 4858482068 5328657752 6173277473 6404362726 6770691422 7024139764 7237635658 7508563196 8235198344 9090063224 9540519731 9716964136 11323397723 12346554946 12808725452 13541382844 14048279528 14475271316 15017126392 19081039462 19316384351 20648548789 22646795446 24693109892 25617450904 27082765688 28950542632 29852593997 31911393583 35223994993 38162078924 38632768702 41297097578 45293590892 49386219784 54437083171 59705187994 63822787166 70447989986 76324157848 77265537404 82594195156 90587181784 104945717041 108874166342 119410375988 127645574332 140895979972 154531074808 165188390312 209891434082 217748332684 238820751976 255291148664 281791959944 328378533967 351025329413 419782868164 435496665368 598807914881 656757067934 702050658826 839565736328 925430413907 1197615829762 1313514135868 1404101317652 1850860827814 2395231659524 2627028271736 2808202635304 3701721655628 4790463319048 7403443311256 10179734552977 20359469105954 40718938211908 81437876423816
• Sum of all divisors σ(n): 190912566297600
• Sum of proper divisors (its aliquot sum) s(n): 109474689873784
• 81437876423816 is an abundant number, because the sum of its proper divisors (109474689873784) is greater than itself. Its abundance is 28036813449968

Bases of 81437876423816

• Binary: 10010100001000100111011101100100000110010001000₂
• Hexadecimal: 0x4A113BB20C88
• Base-36: SV81KYIYW

Squares and roots of 81437876423816

• 81437876423816 squared (81437876423816²) is 6632127716420725889252001856
• 81437876423816 cubed (81437876423816³) is 540106397396836079061460623379924274602496
• The square root of 81437876423816 is 9024293.6800514199
• The cube root of 81437876423816 is 43345.3133441099

Scales and comparisons

• 81,437,876,423,816 seconds is equal to 2,589,472 years, 29 weeks, 3 days, 3 hours, 56 minutes, 56 seconds.
• To count from 1 to 81,437,876,423,816 would take you about six million, four hundred seventy-three thousand, six hundred eighty-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 81437876423816 cubic inches would be around 3612.1 feet tall.

Recreational maths with 81437876423816

• 81437876423816 backwards is 61832467873418
• 81437876423816 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81437876423816's digits is 68
• More coming soon!