155342579931

Names of 155342579931

• Cardinal: 155342579931 can be written as One hundred fifty-five billion, three hundred forty-two million, five hundred seventy-nine thousand, nine hundred thirty-one.

Scientific notation

• Scientific notation: 1.55342579931 × 10¹¹

Factors of 155342579931

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 935

Divisors of 155342579931

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 11 21 33 61 63 71 73 77 99 183 213 219 231 427 497 511 549 639 657 671 693 709 781 803 1281 1491 1533 2013 2127 2343 2409 3843 4331 4453 4473 4599 4697 4963 5183 5467 5621 6039 6381 7029 7227 7799 12993 13359 14091 14889 15549 16401 16863 23397 30317 31171 36281 38979 40077 42273 43249 44667 46647 47641 48983 49203 50339 50589 51757 54593 57013 70191 90951 93513 108843 129747 142923 146949 151017 155271 163779 171039 272853 280539 302743 316163 326529 333487 342881 352373 362299 389241 399091 428769 440847 453051 465813 475739 491337 513117 553729 569327 908229 948489 1000461 1028643 1057119 1086897 1197273 1427217 1661187 1707981 2213141 2724687 2845467 3001383 3070679 3085929 3157177 3171357 3260691 3330173 3477793 3591819 3674747 3876103 3985289 4281651 4983561 5123943 6639423 9212037 9471531 9990519 10433379 11024241 11628309 11955867 19918269 21494753 22100239 24344551 25723229 27636111 28414593 29971557 31300137 33072723 33777469 34728947 34884927 35867601 40422217 64484259 66300717 73033653 77169687 101332407 104186841 121266651 193452777 198902151 219100959 224159567 231509061 236442283 243102629 282955519 303997221 312560523 363799953 672478701 709326849 729307887 848866557 1569116969 2017436103 2127980547 2187923661 2465755237 2546599671 4707350907 7397265711 14122052721 17260286659 22191797133 51780859977 155342579931
• Sum of all divisors σ(n): 292704122880
• Sum of proper divisors (its aliquot sum) s(n): 137361542949
• 155342579931 is a deficient number, because the sum of its proper divisors (137361542949) is less than itself. Its deficiency is 17981036982

Bases of 155342579931

• Binary: 10010000101011001000111010100011011011₂
• Hexadecimal: 0x242B23A8DB
• Base-36: 1ZD2YLSR

Squares and roots of 155342579931

• 155342579931 squared (155342579931²) is 24131317139619123964761
• 155342579931 cubed (155342579931³) is 3748621061601594051392083269811491
• The square root of 155342579931 is 394135.2305123205
• The cube root of 155342579931 is 5375.6399302239

Scales and comparisons

• 155,342,579,931 seconds is equal to 4,939 years, 21 weeks, 3 days, 12 hours, 38 minutes, 51 seconds.
• To count from 1 to 155,342,579,931 would take you about nine thousand, eight hundred seventy-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 155342579931 cubic inches would be around 448 feet tall.

Recreational maths with 155342579931

• 155342579931 backwards is 139975243551
• The number of decimal digits it has is: 12
• The sum of 155342579931's digits is 54
• More coming soon!