21088539648

Names of 21088539648

• Cardinal: 21088539648 can be written as Twenty-one billion, eighty-eight million, five hundred thirty-nine thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1088539648 × 10¹⁰

Factors of 21088539648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 69357

Divisors of 21088539648

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 88 96 99 108 128 132 144 176 192 198 216 256 264 288 297 352 384 396 432 512 528 576 594 704 768 792 864 1024 1056 1152 1188 1408 1536 1584 1728 2112 2304 2376 2816 3072 3168 3456 4224 4608 4752 5632 6336 6912 8448 9216 9504 11264 12672 13824 16896 19008 25344 27648 33792 38016 50688 69341 76032 101376 138682 152064 208023 277364 304128 416046 554728 624069 762751 832092 1109456 1248138 1525502 1664184 1872207 2218912 2288253 2496276 3051004 3328368 3744414 4437824 4576506 4992552 6102008 6656736 6864759 7488828 8875648 9153012 9985104 12204016 13313472 13729518 14977656 17751296 18306024 19970208 20594277 24408032 26626944 27459036 29955312 35502592 36612048 39940416 41188554 48816064 53253888 54918072 59910624 71005184 73224096 79880832 82377108 97632128 106507776 109836144 119821248 146448192 159761664 164754216 195264256 213015552 219672288 239642496 292896384 319523328 329508432 390528512 439344576 479284992 585792768 639046656 659016864 781057024 878689152 958569984 1171585536 1318033728 1757378304 1917139968 2343171072 2636067456 3514756608 5272134912 7029513216 10544269824 21088539648
• Sum of all divisors σ(n): 68132675520
• Sum of proper divisors (its aliquot sum) s(n): 47044135872
• 21088539648 is an abundant number, because the sum of its proper divisors (47044135872) is greater than itself. Its abundance is 25955596224

Bases of 21088539648

• Binary: 10011101000111110011001010000000000₂
• Hexadecimal: 0x4E8F99400
• Base-36: 9ORKLC0

Squares and roots of 21088539648

• 21088539648 squared (21088539648²) is 444726504485267963904
• 21088539648 cubed (21088539648³) is 9378632522354023288693736865792
• The square root of 21088539648 is 145218.9369469423
• The cube root of 21088539648 is 2762.7961077543

Scales and comparisons

• 21,088,539,648 seconds is equal to 670 years, 28 weeks, 4 days, 7 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,088,539,648 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 21088539648 cubic inches would be around 230.2 feet tall.

Recreational maths with 21088539648

• 21088539648 backwards is 84693588012
• 21088539648 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21088539648's digits is 54
• More coming soon!