21431789288

Names of 21431789288

• Cardinal: 21431789288 can be written as Twenty-one billion, four hundred thirty-one million, seven hundred eighty-nine thousand, two hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1431789288 × 10¹⁰

Factors of 21431789288

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 352

Divisors of 21431789288

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 7 8 13 14 26 28 41 52 56 61 79 82 91 104 122 149 158 164 182 244 287 298 316 328 364 427 488 533 553 574 596 632 728 793 854 1027 1043 1066 1106 1148 1192 1586 1708 1937 2054 2086 2132 2212 2296 2501 3172 3239 3416 3731 3874 4108 4172 4264 4424 4819 5002 5551 6109 6344 6478 7189 7462 7748 8216 8344 9089 9638 10004 11102 11771 12218 12956 13559 14378 14924 15496 17507 18178 19276 20008 22204 22673 23542 24436 25912 27118 28756 29848 32513 33733 35014 36356 38552 42107 42763 44408 45346 47084 48872 54236 57512 62647 63623 65026 67466 70028 72712 79417 82397 84214 85526 90692 94168 108472 118157 125294 127246 130052 134932 140056 153023 158834 164794 168428 171052 181384 197579 227591 236314 250588 254492 260104 269864 294749 306046 317668 329588 336856 342104 372649 395158 438529 455182 472628 482611 501176 508984 555919 589498 612092 635336 659176 718031 745298 790316 827099 877058 910364 945256 965222 1071161 1111838 1178996 1224184 1383053 1436062 1490596 1580632 1654198 1754116 1820728 1930444 2142322 2223676 2357992 2568527 2608543 2766106 2872124 2981192 3308396 3378277 3508232 3860888 4284644 4447352 4844437 5026217 5137054 5217086 5532212 5744248 6273943 6616792 6756554 8569288 9334403 9688874 10052434 10274108 10434172 11064424 12547886 13513108 17979689 18668806 19377748 20104868 20548216 20868344 25095772 27026216 29439271 33911059 35959378 37337612 38755496 40209736 43917601 50191544 58878542 65340821 67822118 71918756 74675224 87835202 117757084 130681642 135644236 143837512 175670404 206074897 235514168 261363284 271288472 351340808 382710523 412149794 522726568 765421046 824299588 1530842092 1648599176 2678973661 3061684184 5357947322 10715894644 21431789288
• Sum of all divisors σ(n): 52496640000
• Sum of proper divisors (its aliquot sum) s(n): 31064850712
• 21431789288 is an abundant number, because the sum of its proper divisors (31064850712) is greater than itself. Its abundance is 9633061424

Bases of 21431789288

• Binary: 10011111101011011110010011011101000₂
• Hexadecimal: 0x4FD6F26E8
• Base-36: 9UFXMG8

Squares and roots of 21431789288

• 21431789288 squared (21431789288²) is 459321592085231546944
• 21431789288 cubed (21431789288³) is 9844083576999371050794088335872
• The square root of 21431789288 is 146396.0016120659
• The cube root of 21431789288 is 2777.7051471943

Scales and comparisons

• 21,431,789,288 seconds is equal to 681 years, 24 weeks, 1 day, 2 hours, 48 minutes, 8 seconds.
• To count from 1 to 21,431,789,288 would take you about one thousand, three hundred sixty-two 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 21431789288 cubic inches would be around 231.5 feet tall.

Recreational maths with 21431789288

• 21431789288 backwards is 88298713412
• The number of decimal digits it has is: 11
• The sum of 21431789288's digits is 53
• More coming soon!