155139393825

Names of 155139393825

• Cardinal: 155139393825 can be written as One hundred fifty-five billion, one hundred thirty-nine million, three hundred ninety-three thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 1.55139393825 × 10¹¹

Factors of 155139393825

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2106

Divisors of 155139393825

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 9 13 15 25 27 31 39 45 65 75 93 117 135 155 195 225 279 325 331 351 403 465 585 675 775 837 975 993 1209 1395 1655 1723 1755 2015 2325 2925 2979 3627 4185 4303 4965 5169 6045 6975 8275 8615 8775 8937 10075 10261 10881 12909 14895 15507 18135 20925 21515 22399 24825 25845 30225 30783 38727 43075 44685 46521 51305 53413 54405 64545 67197 74475 77535 90675 92349 107575 111995 116181 129225 133393 153915 160239 193635 201591 223425 232605 256525 267065 272025 277047 322725 335985 387675 400179 461745 480717 559975 570313 580905 604773 666965 694369 769575 801195 968175 1007955 1163025 1200537 1335325 1385235 1442151 1679925 1710939 2000895 2083107 2308725 2403585 2851565 2904525 3023865 3334825 3471845 3601611 4005975 5039775 5132817 6002685 6249321 6926175 7210755 7414069 8554695 10004475 10415535 12017925 14257825 15119325 15398451 17359225 17679703 18008055 18747963 22242207 25664085 30013425 31246605 36053775 37070345 42773475 52077675 53039109 66726621 76992255 88398515 90040275 93739815 111211035 128320425 156233025 159117327 185351725 200179863 229836139 265195545 333633105 384961275 441992575 468699075 477351981 556055175 689508417 795586635 1000899315 1149180695 1325977725 1668165525 2068525251 2386759905 3447542085 3977933175 5004496575 5745903475 6205575753 10342626255 11933799525 17237710425 31027878765 51713131275 155139393825
• Sum of all divisors σ(n): 317961871360
• Sum of proper divisors (its aliquot sum) s(n): 162822477535
• 155139393825 is an abundant number, because the sum of its proper divisors (162822477535) is greater than itself. Its abundance is 7683083710

Bases of 155139393825

• Binary: 10010000011111000001110100100100100001₂
• Hexadecimal: 0x241F074921
• Base-36: 1Z9PZME9

Squares and roots of 155139393825

• 155139393825 squared (155139393825²) is 24068231516388448130625
• 155139393825 cubed (155139393825³) is 3733930847892264396217616918390625
• The square root of 155139393825 is 393877.3842517489
• The cube root of 155139393825 is 5373.2951515415

Scales and comparisons

• 155,139,393,825 seconds is equal to 4,932 years, 49 weeks, 3 days, 20 hours, 3 minutes, 45 seconds.
• To count from 1 to 155,139,393,825 would take you about nine thousand, eight hundred sixty-five 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 155139393825 cubic inches would be around 447.8 feet tall.

Recreational maths with 155139393825

• 155139393825 backwards is 528393931551
• The number of decimal digits it has is: 12
• The sum of 155139393825's digits is 54
• More coming soon!