155621441664

Names of 155621441664

• Cardinal: 155621441664 can be written as One hundred fifty-five billion, six hundred twenty-one million, four hundred forty-one thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.55621441664 × 10¹¹

Factors of 155621441664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 7408

Divisors of 155621441664

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 128 144 156 192 208 234 288 312 384 416 468 576 624 832 936 1152 1248 1664 1872 1889 2496 3744 3778 4992 5501 5667 7488 7556 11002 11334 14976 15112 16503 17001 22004 22668 24557 30224 33006 34002 44008 45336 49114 49509 60448 66012 68004 71513 73671 88016 90672 98228 99018 120896 132024 136008 143026 147342 176032 181344 196456 198036 214539 221013 241792 264048 272016 286052 294684 352064 362688 392912 396072 429078 442026 528096 544032 572104 589368 643617 704128 725376 785824 792144 858156 884052 1056192 1088064 1144208 1178736 1287234 1571648 1584288 1716312 1768104 2112384 2176128 2288416 2357472 2574468 3143296 3168576 3432624 3536208 4576832 4714944 5148936 6337152 6865248 7072416 9153664 9429888 10297872 10391389 13730496 14144832 20595744 20782778 27460992 28289664 31174167 41191488 41565556 62348334 82382976 83131112 93522501 124696668 135088057 166262224 187045002 249393336 270176114 332524448 374090004 405264171 498786672 540352228 665048896 748180008 810528342 997573344 1080704456 1215792513 1330097792 1496360016 1621056684 1995146688 2161408912 2431585026 2992720032 3242113368 3990293376 4322817824 4863170052 5985440064 6484226736 8645635648 9726340104 11970880128 12968453472 17291271296 19452680208 25936906944 38905360416 51873813888 77810720832 155621441664
• Sum of all divisors σ(n): 482607379800
• Sum of proper divisors (its aliquot sum) s(n): 326985938136
• 155621441664 is an abundant number, because the sum of its proper divisors (326985938136) is greater than itself. Its abundance is 171364496472

Bases of 155621441664

• Binary: 10010000111011110000101100000010000000₂
• Hexadecimal: 0x243BC2C080
• Base-36: 1ZHOZKW0

Squares and roots of 155621441664

• 155621441664 squared (155621441664²) is 24218033105581755088896
• 155621441664 cubed (155621441664³) is 3768845226157111852349363998162944
• The square root of 155621441664 is 394488.8359180777
• The cube root of 155621441664 is 5378.8546833913

Scales and comparisons

• 155,621,441,664 seconds is equal to 4,948 years, 14 weeks, 4 days, 2 hours, 14 minutes, 24 seconds.
• To count from 1 to 155,621,441,664 would take you about nine thousand, eight hundred ninety-six 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 155621441664 cubic inches would be around 448.2 feet tall.

Recreational maths with 155621441664

• 155621441664 backwards is 466144126551
• The number of decimal digits it has is: 12
• The sum of 155621441664's digits is 45
• More coming soon!