21089064864

Names of 21089064864

• Cardinal: 21089064864 can be written as Twenty-one billion, eighty-nine million, sixty-four thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 2.1089064864 × 10¹⁰

Factors of 21089064864

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 612

Divisors of 21089064864

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 233 336 367 466 672 699 734 932 1101 1398 1468 1631 1864 2202 2569 2796 2936 3262 3728 4404 4893 5138 5592 5872 6524 7456 7707 8808 9786 10276 11184 11744 13048 15414 17616 19572 20552 22368 26096 30828 35232 39144 41104 52192 61656 78288 82208 85511 123312 134689 156576 171022 246624 256533 269378 342044 404067 513066 538756 598577 684088 808134 942823 1026132 1077512 1197154 1368176 1616268 1795731 1885646 2052264 2155024 2394308 2736352 2828469 3232536 3591462 3771292 4104528 4310048 4788616 5656938 6465072 7182924 7542584 8209056 9577232 11313876 12930144 14365848 15085168 19154464 22627752 28731696 30170336 31382537 45255504 57463392 62765074 90511008 94147611 125530148 188295222 219677759 251060296 376590444 439355518 502120592 659033277 753180888 878711036 1004241184 1318066554 1506361776 1757422072 2636133108 3012723552 3514844144 5272266216 7029688288 10544532432 21089064864
• Sum of all divisors σ(n): 63712329408
• Sum of proper divisors (its aliquot sum) s(n): 42623264544
• 21089064864 is an abundant number, because the sum of its proper divisors (42623264544) is greater than itself. Its abundance is 21534199680

Bases of 21089064864

• Binary: 10011101001000000011001011110100000₂
• Hexadecimal: 0x4E90197A0
• Base-36: 9ORVULC

Squares and roots of 21089064864

• 21089064864 squared (21089064864²) is 444748656837999338496
• 21089064864 cubed (21089064864³) is 9379333272233445189531236204544
• The square root of 21089064864 is 145220.7452948785
• The cube root of 21089064864 is 2762.8190436349

Scales and comparisons

• 21,089,064,864 seconds is equal to 670 years, 29 weeks, 3 days, 9 hours, 34 minutes, 24 seconds.
• To count from 1 to 21,089,064,864 would take you about one thousand, three hundred forty-one 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 21089064864 cubic inches would be around 230.2 feet tall.

Recreational maths with 21089064864

• 21089064864 backwards is 46846098012
• 21089064864 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21089064864's digits is 48
• More coming soon!