21369490470

Names of 21369490470

• Cardinal: 21369490470 can be written as Twenty-one billion, three hundred sixty-nine million, four hundred ninety thousand, four hundred seventy.

Scientific notation

• Scientific notation: 2.136949047 × 10¹⁰

Factors of 21369490470

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1384

Divisors of 21369490470

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 47 54 81 90 94 135 141 162 235 243 270 282 405 423 470 486 705 729 810 846 1215 1269 1327 1410 1458 2115 2209 2430 2538 2654 3645 3807 3981 4230 4418 6345 6627 6635 7290 7614 7962 11045 11421 11943 12690 13254 13270 19035 19881 19905 22090 22842 23886 33135 34263 35829 38070 39762 39810 57105 59643 59715 62369 66270 68526 71658 99405 107487 114210 119286 119430 124738 171315 178929 179145 187107 198810 214974 298215 311845 322461 342630 357858 358290 374214 536787 537435 561321 596430 623690 644922 894645 935535 967383 1073574 1074870 1122642 1610361 1612305 1683963 1789290 1871070 1934766 2683935 2806605 2931343 3220722 3224610 3367926 4836915 5051889 5367870 5613210 5862686 8051805 8419815 8794029 9673830 10103778 14656715 15155667 16103610 16839630 17588058 25259445 26382087 29313430 30311334 43970145 45467001 50518890 52764174 75778335 79146261 87940290 90934002 131910435 151556670 158292522 227335005 237438783 263820870 395731305 454670010 474877566 712316349 791462610 1187193915 1424632698 2136949047 2374387830 3561581745 4273898094 7123163490 10684745235 21369490470
• Sum of all divisors σ(n): 58968801504
• Sum of proper divisors (its aliquot sum) s(n): 37599311034
• 21369490470 is an abundant number, because the sum of its proper divisors (37599311034) is greater than itself. Its abundance is 16229820564

Bases of 21369490470

• Binary: 10011111001101110001000110000100110₂
• Hexadecimal: 0x4F9B88C26
• Base-36: 9TEUCDI

Squares and roots of 21369490470

• 21369490470 squared (21369490470²) is 456655122947420820900
• 21369490470 cubed (21369490470³) is 9758487297901587543302126823000
• The square root of 21369490470 is 146183.0717627729
• The cube root of 21369490470 is 2775.0110854195

Scales and comparisons

• 21,369,490,470 seconds is equal to 679 years, 25 weeks, 1 day, 1 hour, 34 minutes, 30 seconds.
• To count from 1 to 21,369,490,470 would take you about one thousand, three hundred fifty-eight 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 21369490470 cubic inches would be around 231.3 feet tall.

Recreational maths with 21369490470

• 21369490470 backwards is 07409496312
• 21369490470 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21369490470's digits is 45
• More coming soon!