83121395645078978

Names of 83121395645078978

• Cardinal: 83121395645078978 can be written as Eighty-three quadrillion, one hundred twenty-one trillion, three hundred ninety-five billion, six hundred forty-five million, seventy-eight thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 8.3121395645078978 × 10¹⁶

Factors of 83121395645078978

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 308103432

Divisors of 83121395645078978

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 11 17 22 23 34 46 79 158 187 253 374 391 397 506 782 794 869 1343 1738 1817 2686 3634 4301 4367 6749 8602 8734 9131 13498 14773 18262 19987 29546 30889 31363 39974 61778 62726 74239 100441 148478 155227 200882 310454 339779 344993 533171 679558 689986 721349 1066342 1442698 1707497 3414994 5864881 7934839 11729762 12262933 15869678 24525866 134892263 269784526 308102903 616205806 3389131933 5237749351 6778263866 7086366769 10475498702 14172733538 24340129337 48680258674 57615242861 77950034459 115230485722 120468235073 122316852491 155900068918 240936470146 244633704982 267741422707 413782198729 535482845414 559822974751 827564397458 1119645949502 1325150585803 1345485377401 2079386492347 2650301171606 2690970754802 2813287607293 4158772984694 4551604186019 5626575214586 6158052722261 9103208372038 9516990570767 9663031346789 12316105444522 19033981141534 19326062693578 22873251415817 30946163680223 45746502831634 47825889323981 61892327360446 95651778647962 104686896278437 106293344814679 164271532895413 209373792556874 212586689629358 222249720976147 328543065790826 444499441952294 526084782563791 1052169565127582 1806986861849543 2444746930737617 3613973723699086 3778245256594499 4889493861475234 7556490513188998 41560697822539489 83121395645078978
• Sum of all divisors σ(n): 152565064998174720
• Sum of proper divisors (its aliquot sum) s(n): 69443669353095742
• 83121395645078978 is a deficient number, because the sum of its proper divisors (69443669353095742) is less than itself. Its deficiency is 13677726291983236

Bases of 83121395645078978

• Binary: 100100111010011100111100000001100101010001101110111000010₂
• Hexadecimal: 0x1274E780CA8DDC2
• Base-36: MQG2Q048QTE

Squares and roots of 83121395645078978

• 83121395645078978 squared (83121395645078978²) is 6909166413985754489195507857524484
• 83121395645078978 cubed (83121395645078978³) is 574299555074601432435298453300046607658043748697352
• The square root of 83121395645078978 is 288307814.0548378859
• The cube root of 83121395645078978 is 436419.6287624729

Scales and comparisons

• 83,121,395,645,078,978 seconds is equal to 2,643,003,270 years, 8 weeks, 13 hours, 29 minutes, 38 seconds.
• To count from 1 to 83,121,395,645,078,978 would take you about seven billion, nine hundred twenty-nine million, nine thousand, eight 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 83121395645078978 cubic inches would be around 36368.3 feet tall.

Recreational maths with 83121395645078978

• 83121395645078978 backwards is 87987054659312138
• The number of decimal digits it has is: 17
• The sum of 83121395645078978's digits is 86
• More coming soon!