81373804200

Names of 81373804200

• Cardinal: 81373804200 can be written as Eighty-one billion, three hundred seventy-three million, eight hundred four thousand, two hundred.

Scientific notation

• Scientific notation: 8.13738042 × 10¹⁰

Factors of 81373804200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 42

Divisors of 81373804200

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 19 20 24 25 26 27 30 36 38 39 40 45 50 52 54 57 60 65 72 75 76 78 90 95 100 104 108 114 117 120 130 135 150 152 156 169 171 180 190 195 200 216 225 228 234 247 260 270 285 300 312 325 338 342 351 360 361 380 390 450 456 468 475 494 507 513 520 540 570 585 600 650 675 676 684 702 722 741 760 780 845 855 900 936 950 975 988 1014 1026 1080 1083 1140 1170 1235 1300 1350 1352 1368 1404 1425 1444 1482 1521 1560 1690 1710 1755 1800 1805 1900 1950 1976 2028 2052 2166 2197 2223 2280 2340 2470 2535 2565 2600 2700 2808 2850 2888 2925 2964 3042 3211 3249 3380 3420 3510 3610 3705 3800 3900 4056 4104 4225 4275 4332 4394 4446 4563 4680 4693 4940 5070 5130 5400 5415 5700 5850 5928 6084 6175 6422 6498 6591 6669 6760 6840 6859 7020 7220 7410 7605 7800 8450 8550 8664 8775 8788 8892 9025 9126 9386 9633 9747 9880 10140 10260 10830 10985 11115 11400 11700 12168 12350 12675 12825 12844 12996 13182 13338 13718 14040 14079 14440 14820 15210 16055 16245 16900 17100 17550 17576 17784 18050 18252 18525 18772 19266 19494 19773 20280 20520 20577 21660 21970 22230 22815 23400 23465 24700 25350 25650 25688 25992 26364 26676 27075 27436 28158 28899 29640 30420 32110 32490 32955 33345 33800 34200 34295 35100 36100 36504 37050 37544 38025 38532 38988 39546 41154 41743 42237 43320 43940 44460 45630 46930 48165 48735 49400 50700 51300 52728 53352 54150 54872 54925 55575 56316 57798 59319 60840 61009 61731 64220 64980 65910 66690 68590 70200 70395 72200 74100 76050 77064 77976 79092 80275 81225 82308 83486 84474 86697 87880 88920 89167 91260 93860 96330 97470 98865 101400 102600 102885 108300 109850 111150 112632 114075 115596 117325 118638 122018 123462 125229 126711 128440 129960 131820 133380 137180 140790 144495 148200 152100 158184 160550 162450 164616 164775 166725 166972 168948 171475 173394 178334 182520 183027 185193 187720 192660 194940 197730 205770 208715 211185 216600 219700 222300 228150 231192 234650 237276 240825 243675 244036 246924 250458 253422 263640 266760 267501 274360 281580 288990 296595 304200 305045 308655 321100 324900 329550 333450 333944 337896 342950 346788 351975 356668 366054 370386 375687 385320 389880 395460 411540 417430 422370 433485 439400 444600 445835 456300 469300 474552 481650 487350 488072 493848 494325 500916 506844 514425 535002 549081 563160 577980 593190 610090 617310 626145 633555 642200 649800 659100 666900 685900 693576 703950 713336 722475 732108 740772 751374 790920 793117 802503 823080 834860 844740 866970 891670 912600 915135 925965 938600 963300 974700 988650 1001832 1013688 1028850 1043575 1055925 1070004 1098162 1127061 1155960 1159171 1186380 1220180 1234620 1252290 1267110 1318200 1333800 1337505 1371800 1407900 1444950 1464216 1481544 1482975 1502748 1525225 1543275 1586234 1605006 1647243 1669720 1689480 1733940 1783340 1830270 1851930 1878435 1926600 1949400 1977300 2057700 2087150 2111850 2140008 2167425 2196324 2229175 2254122 2318342 2372760 2379351 2407509 2440360 2469240 2504580 2534220 2675010 2745405 2815800 2889900 2965950 3005496 3050450 3086550 3130725 3167775 3172468 3210012 3294486 3467880 3477513 3566680 3660540 3703860 3756870 3954600 3965585 4012515 4115400 4174300 4223700 4334850 4392648 4458350 4508244 4575675 4629825 4636684 4758702 4815018 5009160 5068440 5350020 5490810 5635305 5779800 5795855 5931900 6100900 6173100 6261450 6335550 6344936 6420024 6588972 6687525 6955026 7138053 7321080 7407720 7513740 7931170 8025030 8236215 8348600 8447400 8669700 8916700 9016488 9151350 9259650 9273368 9392175 9517404 9630036 10432539 10700040 10981620 11270610 11591710 11863800 11896755 12037545 12201800 12346200 12522900 12671100 13177944 13375050 13727025 13910052 14276106 15027480 15069223 15862340 16050060 16472430 17339400 17387565 17833400 18302700 18519300 18784350 19034808 19260072 19827925 20062575 20865078 21414159 21963240 22541220 23183420 23793510 24075090 25045800 25342200 26750100 27454050 27820104 28176525 28552212 28979275 30138446 31297617 31724680 32100120 32944860 34775130 35690265 36605400 37038600 37568700 39655850 40125150 41181075 41730156 42828318 45082440 45207669 46366840 47587020 48150180 52162695 53500200 54908100 56353050 57104424 57958550 59483775 60187725 60276892 62595234 65889720 69550260 71380530 75137400 75346115 79311700 80250300 82362150 83460312 85656636 86937825 90415338 95174040 96300360 104325390 107070795 109816200 112706100 115917100 118967550 120375450 120553784 125190468 135623007 139100520 142761060 150692230 156488085 158623400 160500600 164724300 171313272 173875650 178451325 180830676 208650780 214141590 225412200 226038345 231834200 237935100 240750900 250380936 260813475 271246014 285522120 301384460 312976170 329448600 347751300 356902650 361661352 376730575 406869021 417301560 428283180 452076690 475870200 481501800 521626950 535353975 542492028 602768920 625952340 678115035 695502600 713805300 753461150 782440425 813738042 856566360 904153380 1043253900 1070707950 1084984056 1130191725 1251904680 1356230070 1427610600 1506922300 1564880850 1627476084 1808306760 2034345105 2086507800 2141415900 2260383450 2712460140 3013844600 3129761700 3254952168 3390575175 4068690210 4282831800 4520766900 5424920280 6259523400 6781150350 8137380420 9041533800 10171725525 13562300700 16274760840 20343451050 27124601400 40686902100 81373804200
• Sum of all divisors σ(n): 320500320000
• Sum of proper divisors (its aliquot sum) s(n): 239126515800
• 81373804200 is an abundant number, because the sum of its proper divisors (239126515800) is greater than itself. Its abundance is 157752711600

Bases of 81373804200

• Binary: 1001011110010010000011011011010101000₂
• Hexadecimal: 0x12F241B6A8
• Base-36: 11DRV160

Squares and roots of 81373804200

• 81373804200 squared (81373804200²) is 6621696009979937640000
• 81373804200 cubed (81373804200³) is 538832594588028691445570088000000
• The square root of 81373804200 is 285260.9405439167
• The cube root of 81373804200 is 4333.3942880315

Scales and comparisons

• 81,373,804,200 seconds is equal to 2,587 years, 22 weeks, 4 days, 10 hours, 30 minutes.
• To count from 1 to 81,373,804,200 would take you about five thousand, one hundred seventy-four 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 81373804200 cubic inches would be around 361.1 feet tall.

Recreational maths with 81373804200

• 81373804200 backwards is 00240837318
• 81373804200 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81373804200's digits is 36
• More coming soon!