642817689815216

Names of 642817689815216

• Cardinal: 642817689815216 can be written as Six hundred forty-two trillion, eight hundred seventeen billion, six hundred eighty-nine million, eight hundred fifteen thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 6.42817689815216 × 10¹⁴

Factors of 642817689815216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1320696

Divisors of 642817689815216

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 17 34 47 68 94 136 188 272 376 752 799 1598 3196 6392 12784 39241 78482 156964 313928 627856 667097 1281389 1334194 1844327 2562778 2668388 3688654 5125556 5336776 7377308 10251112 10673552 14754616 20502224 21783613 29509232 31353559 43567226 60225283 62707118 87134452 120450566 125414236 174268904 240901132 250828472 348537808 481802264 501656944 963604528 1023829811 2047659622 4095319244 8190638488 16381276976 50282985749 100565971498 201131942996 402263885992 804527771984 854810757733 1709621515466 2363300330203 3419243030932 4726600660406 6838486061864 9453201320812 13676972123728 18906402641624 37812805283248 40176105613451 80352211226902 160704422453804 321408844907608 642817689815216
• Sum of all divisors σ(n): 1346814862081920
• Sum of proper divisors (its aliquot sum) s(n): 703997172266704
• 642817689815216 is an abundant number, because the sum of its proper divisors (703997172266704) is greater than itself. Its abundance is 61179482451488

Bases of 642817689815216

• Binary: 10010010001010001110101000000011101000100010110000₂
• Hexadecimal: 0x248A3A80E88B0
• Base-36: 6BUYDBGDRK

Squares and roots of 642817689815216

• 642817689815216 squared (642817689815216²) is 413214582339371251976225126656
• 642817689815216 cubed (642817689815216³) is 265621643217353980864766593411792560835997696
• The square root of 642817689815216 is 25353849.6054389343
• The cube root of 642817689815216 is 86303.6718017999

Scales and comparisons

• 642,817,689,815,216 seconds is equal to 20,439,614 years, 8 weeks, 6 days, 1 hour, 6 minutes, 56 seconds.
• To count from 1 to 642,817,689,815,216 would take you about fifty-one million, ninety-nine thousand and thirty-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 642817689815216 cubic inches would be around 7192 feet tall.

Recreational maths with 642817689815216

• 642817689815216 backwards is 612518986718246
• The number of decimal digits it has is: 15
• The sum of 642817689815216's digits is 74
• More coming soon!