21243389508

Names of 21243389508

• Cardinal: 21243389508 can be written as Twenty-one billion, two hundred forty-three million, three hundred eighty-nine thousand, five hundred eight.

Scientific notation

• Scientific notation: 2.1243389508 × 10¹⁰

Factors of 21243389508

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1326

Divisors of 21243389508

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 19 22 27 33 36 38 44 54 57 66 76 81 99 108 114 132 162 171 198 209 228 243 297 324 342 396 418 486 513 594 627 684 729 836 891 972 1026 1188 1254 1291 1458 1539 1782 1881 2052 2187 2508 2582 2673 2916 3078 3564 3762 3873 4374 4617 5164 5346 5643 6156 6561 7524 7746 8019 8748 9234 10692 11286 11619 13122 13851 14201 15492 16038 16929 18468 19683 22572 23238 24057 24529 26244 27702 28402 32076 33858 34857 39366 41553 42603 46476 48114 49058 50787 55404 56804 67716 69714 72171 73587 78732 83106 85206 96228 98116 101574 104571 124659 127809 139428 144342 147174 152361 166212 170412 203148 209142 216513 220761 249318 255618 269819 288684 294348 304722 313713 373977 383427 418284 433026 441522 457083 498636 511236 539638 609444 627426 662283 747954 766854 809457 866052 883044 914166 941139 1079276 1150281 1254852 1324566 1371249 1495908 1533708 1618914 1828332 1882278 1986849 2300562 2428371 2649132 2742498 2823417 3237828 3450843 3764556 3973698 4113747 4601124 4856742 5484996 5646834 5960547 6901686 7285113 7947396 8227494 8470251 9713484 10352529 11293668 11921094 13803372 14570226 16454988 16940502 17881641 20705058 21855339 23842188 25410753 29140452 31057587 33881004 35763282 41410116 43710678 50821506 53644923 62115174 65566017 71526564 87421356 93172761 101643012 107289846 124230348 131132034 160934769 186345522 196698051 214579692 262264068 279518283 321869538 372691044 393396102 482804307 559036566 590094153 643739076 786792204 965608614 1118073132 1180188306 1770282459 1931217228 2360376612 3540564918 5310847377 7081129836 10621694754 21243389508
• Sum of all divisors σ(n): 64083613440
• Sum of proper divisors (its aliquot sum) s(n): 42840223932
• 21243389508 is an abundant number, because the sum of its proper divisors (42840223932) is greater than itself. Its abundance is 21596834424

Bases of 21243389508

• Binary: 10011110010001101000110011001000100₂
• Hexadecimal: 0x4F2346644
• Base-36: 9RBRK90

Squares and roots of 21243389508

• 21243389508 squared (21243389508²) is 451281597788604482064
• 21243389508 cubed (21243389508³) is 9586750759615916456240151784512
• The square root of 21243389508 is 145751.1218070035
• The cube root of 21243389508 is 2769.5418839497

Scales and comparisons

• 21,243,389,508 seconds is equal to 675 years, 24 weeks, 4 days, 13 hours, 31 minutes, 48 seconds.
• To count from 1 to 21,243,389,508 would take you about one thousand, three hundred fifty 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 21243389508 cubic inches would be around 230.8 feet tall.

Recreational maths with 21243389508

• 21243389508 backwards is 80598334212
• The number of decimal digits it has is: 11
• The sum of 21243389508's digits is 45
• More coming soon!