155531513538

Names of 155531513538

• Cardinal: 155531513538 can be written as One hundred fifty-five billion, five hundred thirty-one million, five hundred thirteen thousand, five hundred thirty-eight.

Scientific notation

• Scientific notation: 1.55531513538 × 10¹¹

Factors of 155531513538

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3549

Divisors of 155531513538

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 18 31 62 93 186 191 279 382 521 558 573 1042 1146 1563 1719 2801 3126 3438 4689 5602 5921 8403 9378 11842 16151 16806 17763 25209 32302 35526 48453 50418 53289 86831 96906 99511 106578 145359 173662 199022 260493 290718 298533 520986 534991 597066 781479 895599 1069982 1459321 1562958 1604973 1791198 2918642 3084841 3209946 4377963 4814919 6169682 8755926 9254523 9629838 13133889 16584721 18509046 26267778 27763569 33169442 45238951 49754163 55527138 90477902 99508326 135716853 149262489 271433706 278730311 298524978 407150559 557460622 814301118 836190933 1672381866 2508572799 5017145598 8640639641 17281279282 25921918923 51843837846 77765756769 155531513538
• Sum of all divisors σ(n): 350472904704
• Sum of proper divisors (its aliquot sum) s(n): 194941391166
• 155531513538 is an abundant number, because the sum of its proper divisors (194941391166) is greater than itself. Its abundance is 39409877628

Bases of 155531513538

• Binary: 10010000110110011001101000111011000010₂
• Hexadecimal: 0x2436668EC2
• Base-36: 1ZG7G3WI

Squares and roots of 155531513538

• 155531513538 squared (155531513538²) is 24190051703421077277444
• 155531513538 cubed (155531513538³) is 3762315353995555241491325668036872
• The square root of 155531513538 is 394374.8388754029
• The cube root of 155531513538 is 5377.8184004741

Scales and comparisons

• 155,531,513,538 seconds is equal to 4,945 years, 21 weeks, 6 days, 6 hours, 12 minutes, 18 seconds.
• To count from 1 to 155,531,513,538 would take you about nine thousand, eight hundred ninety 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 155531513538 cubic inches would be around 448.2 feet tall.

Recreational maths with 155531513538

• 155531513538 backwards is 835315135551
• The number of decimal digits it has is: 12
• The sum of 155531513538's digits is 45
• More coming soon!