81400367677440

Names of 81400367677440

• Cardinal: 81400367677440 can be written as Eighty-one trillion, four hundred billion, three hundred sixty-seven million, six hundred seventy-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 8.140036767744 × 10¹³

Factors of 81400367677440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 36
• Sum of prime factors: 36

Divisors of 81400367677440

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 28 30 32 35 38 40 42 48 56 57 60 64 70 76 80 84 95 96 105 112 114 120 128 133 140 152 160 168 190 192 210 224 228 240 256 266 280 285 304 320 336 361 380 384 399 420 448 456 480 512 532 560 570 608 640 665 672 722 760 768 798 840 896 912 960 1024 1064 1083 1120 1140 1216 1280 1330 1344 1444 1520 1536 1596 1680 1792 1805 1824 1920 1995 2048 2128 2166 2240 2280 2432 2527 2560 2660 2688 2888 3040 3072 3192 3360 3584 3610 3648 3840 3990 4096 4256 4332 4480 4560 4864 5054 5120 5320 5376 5415 5776 6080 6144 6384 6720 7168 7220 7296 7581 7680 7980 8192 8512 8664 8960 9120 9728 10108 10240 10640 10752 10830 11552 12160 12288 12635 12768 13440 14336 14440 14592 15162 15360 15960 16384 17024 17328 17920 18240 19456 20216 20480 21280 21504 21660 23104 24320 24576 25270 25536 26880 28672 28880 29184 30324 30720 31920 32768 34048 34656 35840 36480 37905 38912 40432 40960 42560 43008 43320 46208 48640 49152 50540 51072 53760 57344 57760 58368 60648 61440 63840 65536 68096 69312 71680 72960 75810 77824 80864 81920 85120 86016 86640 92416 97280 98304 101080 102144 107520 114688 115520 116736 121296 122880 127680 131072 136192 138624 143360 145920 151620 155648 161728 163840 170240 172032 173280 184832 194560 196608 202160 204288 215040 229376 231040 233472 242592 245760 255360 262144 272384 277248 286720 291840 303240 311296 323456 327680 340480 344064 346560 369664 389120 393216 404320 408576 430080 458752 462080 466944 485184 491520 510720 524288 544768 554496 573440 583680 606480 622592 646912 655360 680960 688128 693120 739328 778240 786432 808640 817152 860160 917504 924160 933888 970368 983040 1021440 1048576 1089536 1108992 1146880 1167360 1212960 1245184 1293824 1310720 1361920 1376256 1386240 1478656 1556480 1572864 1617280 1634304 1720320 1835008 1848320 1867776 1940736 1966080 2042880 2097152 2179072 2217984 2293760 2334720 2425920 2490368 2587648 2621440 2723840 2752512 2772480 2957312 3112960 3145728 3234560 3268608 3440640 3670016 3696640 3735552 3881472 3932160 4085760 4194304 4358144 4435968 4587520 4669440 4851840 4980736 5175296 5242880 5447680 5505024 5544960 5914624 6225920 6291456 6469120 6537216 6881280 7340032 7393280 7471104 7762944 7864320 8171520 8388608 8716288 8871936 9175040 9338880 9703680 9961472 10350592 10485760 10895360 11010048 11089920 11829248 12451840 12582912 12938240 13074432 13762560 14680064 14786560 14942208 15525888 15728640 16343040 16777216 17432576 17743872 18350080 18677760 19407360 19922944 20701184 20971520 21790720 22020096 22179840 23658496 24903680 25165824 25876480 26148864 27525120 29360128 29573120 29884416 31051776 31457280 32686080 33554432 34865152 35487744 36700160 37355520 38814720 39845888 41402368 41943040 43581440 44040192 44359680 47316992 49807360 50331648 51752960 52297728 55050240 58720256 59146240 59768832 62103552 62914560 65372160 67108864 69730304 70975488 73400320 74711040 77629440 79691776 82804736 83886080 87162880 88080384 88719360 94633984 99614720 100663296 103505920 104595456 110100480 117440512 118292480 119537664 124207104 125829120 130744320 134217728 139460608 141950976 146800640 149422080 155258880 159383552 165609472 167772160 174325760 176160768 177438720 189267968 199229440 201326592 207011840 209190912 220200960 234881024 236584960 239075328 248414208 251658240 261488640 268435456 278921216 283901952 293601280 298844160 310517760 318767104 331218944 335544320 348651520 352321536 354877440 378535936 398458880 402653184 414023680 418381824 440401920 469762048 473169920 478150656 496828416 503316480 522977280 536870912 557842432 567803904 587202560 597688320 621035520 637534208 662437888 671088640 697303040 704643072 709754880 757071872 796917760 805306368 828047360 836763648 880803840 939524096 946339840 956301312 993656832 1006632960 1045954560 1073741824 1115684864 1135607808 1174405120 1195376640 1242071040 1275068416 1324875776 1342177280 1394606080 1409286144 1419509760 1514143744 1593835520 1610612736 1656094720 1673527296 1761607680 1879048192 1892679680 1912602624 1987313664 2013265920 2091909120 2147483648 2231369728 2271215616 2348810240 2390753280 2484142080 2550136832 2649751552 2684354560 2789212160 2818572288 2839019520 3028287488 3187671040 3221225472 3312189440 3347054592 3523215360 3758096384 3785359360 3825205248 3974627328 4026531840 4183818240 4462739456 4542431232 4697620480 4781506560 4968284160 5100273664 5299503104 5368709120 5578424320 5637144576 5678039040 6056574976 6375342080 6442450944 6624378880 6694109184 7046430720 7516192768 7570718720 7650410496 7949254656 8053063680 8367636480 8925478912 9084862464 9395240960 9563013120 9936568320 10200547328 10599006208 10737418240 11156848640 11274289152 11356078080 12113149952 12750684160 13248757760 13388218368 14092861440 15032385536 15141437440 15300820992 15898509312 16106127360 16735272960 17850957824 18169724928 18790481920 19126026240 19873136640 20401094656 21198012416 22313697280 22548578304 22712156160 24226299904 25501368320 26497515520 26776436736 28185722880 30282874880 30601641984 31797018624 32212254720 33470545920 35701915648 36339449856 37580963840 38252052480 39746273280 40802189312 42396024832 44627394560 45097156608 45424312320 48452599808 51002736640 52995031040 53552873472 56371445760 60565749760 61203283968 63594037248 66941091840 71403831296 72678899712 75161927680 76504104960 79492546560 84792049664 89254789120 90848624640 96905199616 102005473280 105990062080 107105746944 112742891520 121131499520 122406567936 127188074496 133882183680 142807662592 145357799424 153008209920 158985093120 169584099328 178509578240 181697249280 193810399232 204010946560 211980124160 214211493888 225485783040 242262999040 254376148992 267764367360 285615325184 290715598848 306016419840 317970186240 339168198656 357019156480 363394498560 387620798464 423960248320 428422987776 484525998080 508752297984 535528734720 581431197696 612032839680 635940372480 678336397312 714038312960 726788997120 775241596928 847920496640 856845975552 969051996160 1017504595968 1071057469440 1162862395392 1271880744960 1356672794624 1428076625920 1453577994240 1695840993280 1938103992320 2035009191936 2142114938880 2325724790784 2543761489920 2713345589248 2907155988480 3391681986560 3876207984640 4070018383872 4284229877760 5087522979840 5426691178496 5814311976960 6783363973120 8140036767744 10175045959680 11628623953920 13566727946240 16280073535488 20350091919360 27133455892480 40700183838720 81400367677440
• Sum of all divisors σ(n): 314185447563840
• Sum of proper divisors (its aliquot sum) s(n): 232785079886400
• 81400367677440 is an abundant number, because the sum of its proper divisors (232785079886400) is greater than itself. Its abundance is 151384712208960

Bases of 81400367677440

• Binary: 10010100000100010000000000000000000000000000000₂
• Hexadecimal: 0x4A0880000000
• Base-36: SUQT97X1C

Squares and roots of 81400367677440

• 81400367677440 squared (81400367677440²) is 6626019858022418699884953600
• 81400367677440 cubed (81400367677440³) is 539360452681043669017005404868034166784000
• The square root of 81400367677440 is 9022215.2311635749
• The cube root of 81400367677440 is 43338.6576448671

Scales and comparisons

• 81,400,367,677,440 seconds is equal to 2,588,279 years, 47 weeks, 3 hours, 44 minutes.
• To count from 1 to 81,400,367,677,440 would take you about six million, four hundred seventy thousand, six 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 81400367677440 cubic inches would be around 3611.6 feet tall.

Recreational maths with 81400367677440

• 81400367677440 backwards is 04477676300418
• 81400367677440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81400367677440's digits is 57
• More coming soon!