155840731020

Names of 155840731020

• Cardinal: 155840731020 can be written as One hundred fifty-five billion, eight hundred forty million, seven hundred thirty-one thousand and twenty.

Scientific notation

• Scientific notation: 1.5584073102 × 10¹¹

Factors of 155840731020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1087

Divisors of 155840731020

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 67 78 90 117 130 134 156 180 195 201 234 260 268 335 390 402 468 585 603 670 780 804 871 997 1005 1170 1206 1340 1742 1994 2010 2340 2412 2613 2991 3015 3484 3988 4020 4355 4985 5226 5982 6030 7839 8710 8973 9970 10452 11964 12060 12961 13065 14955 15678 17420 17946 19940 25922 26130 29910 31356 35892 38883 39195 44865 51844 52260 59820 64805 66799 77766 78390 89730 116649 129610 133598 155532 156780 179460 194415 200397 233298 259220 267196 333995 388830 400794 466596 583245 601191 667990 777660 801588 868387 994009 1001985 1166490 1202382 1335980 1736774 1988018 2003970 2332980 2404764 2605161 2982027 3005955 3473548 3976036 4007940 4341935 4970045 5210322 5964054 6011910 7815483 8683870 8946081 9940090 10420644 11928108 12023820 12922117 13025805 14910135 15630966 17367740 17892162 19880180 25844234 26051610 29820270 31261932 35784324 38766351 39077415 44730405 51688468 52103220 59640540 64610585 66598603 77532702 78154830 89460810 116299053 129221170 133197206 155065404 156309660 178921620 193831755 199795809 232598106 258442340 266394412 332993015 387663510 399591618 465196212 581495265 599387427 665986030 775327020 799183236 865781839 998979045 1162990530 1198774854 1331972060 1731563678 1997958090 2325981060 2397549708 2597345517 2996937135 3463127356 3995916180 4328909195 5194691034 5993874270 7792036551 8657818390 10389382068 11987748540 12986727585 15584073102 17315636780 25973455170 31168146204 38960182755 51946910340 77920365510 155840731020
• Sum of all divisors σ(n): 517196678544
• Sum of proper divisors (its aliquot sum) s(n): 361355947524
• 155840731020 is an abundant number, because the sum of its proper divisors (361355947524) is greater than itself. Its abundance is 205515216504

Bases of 155840731020

• Binary: 10010001001000110101001101011110001100₂
• Hexadecimal: 0x2448D4D78C
• Base-36: 1ZLBJPN0

Squares and roots of 155840731020

• 155840731020 squared (155840731020²) is 24286333444847990240400
• 155840731020 cubed (155840731020³) is 3784799957840585651841761537208000
• The square root of 155840731020 is 394766.6792169775
• The cube root of 155840731020 is 5381.3799823241

Scales and comparisons

• 155,840,731,020 seconds is equal to 4,955 years, 13 weeks, 1 day, 3 hours, 57 minutes.
• To count from 1 to 155,840,731,020 would take you about nine thousand, nine hundred ten 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 155840731020 cubic inches would be around 448.4 feet tall.

Recreational maths with 155840731020

• 155840731020 backwards is 020137048551
• 155840731020 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 155840731020's digits is 36
• More coming soon!