21492461440

Names of 21492461440

• Cardinal: 21492461440 can be written as Twenty-one billion, four hundred ninety-two million, four hundred sixty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.149246144 × 10¹⁰

Factors of 21492461440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 656

Divisors of 21492461440

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 32 40 58 64 73 80 116 128 145 146 160 232 290 292 320 365 464 547 580 584 640 730 841 928 1094 1160 1168 1460 1682 1856 2117 2188 2320 2336 2735 2920 3364 3712 4205 4234 4376 4640 4672 5470 5840 6728 8410 8468 8752 9280 9344 10585 10940 11680 13456 15863 16820 16936 17504 18560 21170 21880 23360 26912 31726 33640 33872 35008 39931 42340 43760 46720 53824 61393 63452 67280 67744 70016 79315 79862 84680 87520 107648 122786 126904 134560 135488 158630 159724 169360 175040 199655 245572 253808 269120 270976 306965 317260 319448 338720 350080 399310 460027 491144 507616 538240 613930 634520 638896 677440 798620 920054 982288 1015232 1157999 1227860 1269040 1277792 1354880 1597240 1840108 1964576 2030464 2300135 2315998 2455720 2538080 2555584 3194480 3680216 3929152 4600270 4631996 4911440 5076160 5111168 5789995 6388960 7360432 7858304 9200540 9263992 9822880 10152320 11579990 12777920 14720864 18401080 18527984 19645760 23159980 25555840 29441728 33581971 36802160 37055968 39291520 46319960 58883456 67163942 73604320 74111936 92639920 134327884 147208640 148223872 167909855 185279840 268655768 294417280 335819710 370559680 537311536 671639420 741119360 1074623072 1343278840 2149246144 2686557680 4298492288 5373115360 10746230720 21492461440
• Sum of all divisors σ(n): 54040811760
• Sum of proper divisors (its aliquot sum) s(n): 32548350320
• 21492461440 is an abundant number, because the sum of its proper divisors (32548350320) is greater than itself. Its abundance is 11055888880

Bases of 21492461440

• Binary: 10100000001000011001110111110000000₂
• Hexadecimal: 0x5010CEF80
• Base-36: 9VG21DS

Squares and roots of 21492461440

• 21492461440 squared (21492461440²) is 461925898749886873600
• 21492461440 cubed (21492461440³) is 9927924567019287835210153984000
• The square root of 21492461440 is 146603.0744561655
• The cube root of 21492461440 is 2780.3238516497

Scales and comparisons

• 21,492,461,440 seconds is equal to 683 years, 20 weeks, 3 days, 8 hours, 10 minutes, 40 seconds.
• To count from 1 to 21,492,461,440 would take you about one thousand, three hundred sixty-six 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 21492461440 cubic inches would be around 231.7 feet tall.

Recreational maths with 21492461440

• 21492461440 backwards is 04416429412
• The number of decimal digits it has is: 11
• The sum of 21492461440's digits is 37
• More coming soon!