21399970500

Names of 21399970500

• Cardinal: 21399970500 can be written as Twenty-one billion, three hundred ninety-nine million, nine hundred seventy thousand, five hundred.

Scientific notation

• Scientific notation: 2.13999705 × 10¹⁰

Factors of 21399970500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 74

Divisors of 21399970500

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 23 25 27 30 36 41 45 46 50 54 60 69 75 82 90 92 100 108 115 123 125 135 138 150 164 180 205 207 225 230 246 250 270 276 300 345 369 375 410 414 450 460 492 500 540 575 615 621 675 690 738 750 820 828 900 943 1025 1035 1107 1125 1150 1230 1242 1350 1380 1476 1500 1681 1725 1845 1886 2050 2070 2214 2250 2300 2460 2484 2700 2829 2875 3075 3105 3362 3375 3450 3690 3772 4100 4140 4428 4500 4715 5043 5125 5175 5535 5658 5750 6150 6210 6724 6750 6900 7380 8405 8487 8625 9225 9430 10086 10250 10350 11070 11316 11500 12300 12420 13500 14145 15129 15375 15525 16810 16974 17250 18450 18860 20172 20500 20700 22140 23575 25215 25461 25875 27675 28290 30258 30750 31050 33620 33948 34500 36900 38663 42025 42435 45387 46125 47150 50430 50922 51750 55350 56580 60516 61500 62100 68921 70725 75645 77326 77625 84050 84870 90774 92250 94300 100860 101844 103500 110700 115989 117875 126075 127305 137842 138375 141450 151290 154652 155250 168100 169740 181548 184500 193315 206763 210125 212175 226935 231978 235750 252150 254610 275684 276750 282900 302580 310500 344605 347967 353625 378225 386630 413526 420250 424350 453870 463956 471500 504300 509220 553500 579945 620289 630375 636525 689210 695934 707250 756450 773260 827052 840500 848700 907740 966575 1033815 1043901 1060875 1134675 1159890 1240578 1260750 1273050 1378420 1391868 1414500 1512900 1585183 1723025 1739835 1860867 1891125 1933150 2067630 2087802 2121750 2269350 2319780 2481156 2521500 2546100 2899725 3101445 3170366 3182625 3446050 3479670 3721734 3782250 3866300 4135260 4175604 4243500 4538700 4755549 4832875 5169075 5219505 5673375 5799450 6202890 6340732 6365250 6892100 6959340 7443468 7564500 7925915 8615125 8699175 9304335 9511098 9665750 10338150 10439010 11346750 11598900 12405780 12730500 14266647 14498625 15507225 15851830 17230250 17398350 18608670 19022196 19331500 20676300 20878020 22693500 23777745 25845375 26097525 28533294 28997250 31014450 31703660 34460500 34796700 37217340 39629575 42799941 43495875 46521675 47555490 51690750 52195050 57066588 57994500 62028900 71333235 77536125 79259150 85599882 86991750 93043350 95110980 103381500 104390100 118888725 130487625 142666470 155072250 158518300 171199764 173983500 186086700 198147875 213999705 232608375 237777450 260975250 285332940 310144500 356666175 396295750 427999410 465216750 475554900 521950500 594443625 713332350 792591500 855998820 930433500 1069998525 1188887250 1426664700 1783330875 2139997050 2377774500 3566661750 4279994100 5349992625 7133323500 10699985250 21399970500
• Sum of all divisors σ(n): 74057518080
• Sum of proper divisors (its aliquot sum) s(n): 52657547580
• 21399970500 is an abundant number, because the sum of its proper divisors (52657547580) is greater than itself. Its abundance is 31257577080

Bases of 21399970500

• Binary: 10011111011100010011010001011000100₂
• Hexadecimal: 0x4FB89A2C4
• Base-36: 9TWZMX0

Squares and roots of 21399970500

• 21399970500 squared (21399970500²) is 457958737400870250000
• 21399970500 cubed (21399970500³) is 9800303470595870024327625000000
• The square root of 21399970500 is 146287.2875543189
• The cube root of 21399970500 is 2776.3298228165

Scales and comparisons

• 21,399,970,500 seconds is equal to 680 years, 23 weeks, 3 days, 20 hours, 15 minutes.
• To count from 1 to 21,399,970,500 would take you about one thousand, three hundred sixty 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 21399970500 cubic inches would be around 231.4 feet tall.

Recreational maths with 21399970500

• 21399970500 backwards is 00507999312
• 21399970500 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21399970500's digits is 45
• More coming soon!