855138721770

Names of 855138721770

• Cardinal: 855138721770 can be written as Eight hundred fifty-five billion, one hundred thirty-eight million, seven hundred twenty-one thousand, seven hundred seventy.

Scientific notation

• Scientific notation: 8.5513872177 × 10¹¹

Factors of 855138721770

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1032

Divisors of 855138721770

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 29 30 45 54 58 61 81 87 90 122 135 145 162 174 183 243 261 270 290 305 331 366 405 435 486 522 549 601 610 662 783 810 870 915 993 1098 1202 1215 1305 1566 1647 1655 1769 1803 1830 1986 2349 2430 2610 2745 2979 3005 3294 3310 3538 3606 3915 4698 4941 4965 5307 5409 5490 5958 6010 7047 7830 8235 8845 8937 9015 9599 9882 9930 10614 10818 11745 14094 14823 14895 15921 16227 16470 17429 17690 17874 18030 19198 20191 23490 24705 26535 26811 27045 28797 29646 29790 31842 32454 34858 35235 36661 40382 44685 47763 47995 48681 49410 52287 53070 53622 54090 57594 60573 70470 73322 74115 79605 80433 81135 86391 87145 89370 95526 95990 97362 100955 104574 109983 121146 134055 143289 143985 146043 148230 156861 159210 160866 162270 172782 174290 181719 183305 198931 201910 219966 238815 243405 259173 261435 268110 286578 287970 292086 302865 313722 329949 363438 366610 397862 402165 429867 431955 470583 477630 486810 518346 522870 545157 549915 585539 596793 605730 659898 716445 730215 777519 784305 804330 859734 863910 908595 941166 989847 994655 1063169 1090314 1099830 1171078 1193586 1295865 1411749 1432890 1460430 1555038 1568610 1635471 1649745 1756617 1790379 1817190 1979694 1989310 2126338 2149335 2332557 2352915 2591730 2725785 2823498 2927695 2969541 2983965 3189507 3270942 3299490 3513234 3580758 3887595 4235247 4298670 4665114 4705830 4906413 4949235 5269851 5315845 5371137 5451570 5768999 5855390 5939082 5967930 6379014 7058745 7775190 8177355 8470494 8783085 8908623 8951895 9568521 9812826 9898470 10539702 10631690 10742274 11537998 11662785 12134791 14117490 14847705 15809553 15947535 16113411 16354710 17306997 17566170 17817246 17903790 19137042 21176235 23325570 24269582 24532065 26349255 26855685 28705563 28844995 29695410 31619106 31895070 32226822 34613994 36404373 42352470 44543115 47428659 47842605 48340233 49064130 51920991 52698510 53711370 57411126 57689990 60673955 72808746 79047765 80567055 86116689 86534985 89086230 94857318 95685210 96680466 103841982 109213119 121347910 142285977 143527815 155762973 158095530 161134110 172233378 173069970 182021865 218426238 237143295 241701165 258350067 259604955 284571954 287055630 311525946 327639357 351908939 364043730 430583445 467288919 474286590 483402330 516700134 519209910 546065595 655278714 703817878 711429885 778814865 861166890 934577838 982918071 1055726817 1092131190 1291750335 1401866757 1422859770 1557629730 1638196785 1759544695 1965836142 2111453634 2336444595 2583500670 2803733514 2948754213 3167180451 3276393570 3519089390 4672889190 4914590355 5278634085 5897508426 6334360902 7009333785 9501541353 9829180710 10557268170 14018667570 14743771065 15835902255 19003082706 28504624059 29487542130 31671804510 47507706765 57009248118 85513872177 95015413530 142523120295 171027744354 285046240590 427569360885 855138721770
• Sum of all divisors σ(n): 2435686606080
• Sum of proper divisors (its aliquot sum) s(n): 1580547884310
• 855138721770 is an abundant number, because the sum of its proper divisors (1580547884310) is greater than itself. Its abundance is 725409162540

Bases of 855138721770

• Binary: 1100011100011010001111010101111111101010₂
• Hexadecimal: 0xC71A3D5FEA
• Base-36: AWUFIKMI

Squares and roots of 855138721770

• 855138721770 squared (855138721770²) is 731262233470429471932900
• 855138721770 cubed (855138721770³) is 625330651608578369721636197209233000
• The square root of 855138721770 is 924737.1095451939
• The cube root of 855138721770 is 9491.7332397571

Scales and comparisons

• 855,138,721,770 seconds is equal to 27,190 years, 39 weeks, 5 days, 21 hours, 49 minutes, 30 seconds.
• To count from 1 to 855,138,721,770 would take you about fifty-four thousand, three 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 855138721770 cubic inches would be around 791 feet tall.

Recreational maths with 855138721770

• 855138721770 backwards is 077127831558
• 855138721770 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 855138721770's digits is 54
• More coming soon!