21251241216

Names of 21251241216

• Cardinal: 21251241216 can be written as Twenty-one billion, two hundred fifty-one million, two hundred forty-one thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1251241216 × 10¹⁰

Factors of 21251241216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 738

Divisors of 21251241216

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 43 48 54 64 72 86 96 108 127 128 129 144 172 192 216 254 256 258 288 344 381 384 387 432 508 516 563 576 688 762 768 774 864 1016 1032 1126 1143 1152 1161 1376 1524 1548 1689 1728 2032 2064 2252 2286 2304 2322 2752 3048 3096 3378 3429 3456 4064 4128 4504 4572 4644 5067 5461 5504 6096 6192 6756 6858 6912 8128 8256 9008 9144 9288 10134 10922 11008 12192 12384 13512 13716 15201 16256 16383 16512 18016 18288 18576 20268 21844 24209 24384 24768 27024 27432 30402 32512 32766 33024 36032 36576 37152 40536 43688 48418 48768 49149 49536 54048 54864 60804 65532 71501 72064 72627 73152 74304 81072 87376 96836 97536 98298 99072 108096 109728 121608 131064 143002 144128 145254 146304 147447 148608 162144 174752 193672 196596 214503 216192 217881 219456 243216 262128 286004 290508 292608 294894 297216 324288 349504 387344 393192 429006 432384 435762 438912 486432 524256 572008 581016 589788 643509 648576 653643 699008 774688 786384 858012 871524 877824 972864 1048512 1144016 1162032 1179576 1287018 1297152 1307286 1398016 1549376 1572768 1716024 1743048 1930527 1945728 2097024 2288032 2324064 2359152 2574036 2614572 3074543 3098752 3145536 3432048 3486096 3861054 3891456 4194048 4576064 4648128 4718304 5148072 5229144 6149086 6197504 6291072 6864096 6972192 7722108 9152128 9223629 9296256 9436608 10296144 10458288 12298172 12582144 13728192 13944384 15444216 18304256 18447258 18592512 18873216 20592288 20916576 24596344 27456384 27670887 27888768 30888432 36894516 37746432 41184576 41833152 49192688 54912768 55341774 55777536 61776864 73789032 82369152 83012661 83666304 98385376 110683548 123553728 147578064 164738304 166025322 167332608 196770752 221367096 247107456 295156128 332050644 393541504 442734192 494214912 590312256 664101288 787083008 885468384 1180624512 1328202576 1770936768 2361249024 2656405152 3541873536 5312810304 7083747072 10625620608 21251241216
• Sum of all divisors σ(n): 64926597120
• Sum of proper divisors (its aliquot sum) s(n): 43675355904
• 21251241216 is an abundant number, because the sum of its proper divisors (43675355904) is greater than itself. Its abundance is 22424114688

Bases of 21251241216

• Binary: 10011110010101011000011010100000000₂
• Hexadecimal: 0x4F2AC3500
• Base-36: 9RGFUO0

Squares and roots of 21251241216

• 21251241216 squared (21251241216²) is 451615253220617158656
• 21251241216 cubed (21251241216³) is 9597384683016256102987198365696
• The square root of 21251241216 is 145778.0546447235
• The cube root of 21251241216 is 2769.8830560525

Scales and comparisons

• 21,251,241,216 seconds is equal to 675 years, 37 weeks, 4 days, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,251,241,216 would take you about one thousand, three hundred fifty-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 21251241216 cubic inches would be around 230.8 feet tall.

Recreational maths with 21251241216

• 21251241216 backwards is 61214215212
• 21251241216 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21251241216's digits is 27
• More coming soon!