21473999690

Names of 21473999690

• Cardinal: 21473999690 can be written as Twenty-one billion, four hundred seventy-three million, nine hundred ninety-nine thousand, six hundred ninety.

Scientific notation

• Scientific notation: 2.147399969 × 10¹⁰

Factors of 21473999690

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 649

Divisors of 21473999690

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 10 11 13 19 22 26 37 38 41 55 65 74 82 95 110 130 143 185 190 205 209 247 286 370 407 410 418 451 481 494 521 533 703 715 779 814 902 962 1042 1045 1066 1235 1406 1430 1517 1558 2035 2090 2255 2405 2470 2605 2665 2717 3034 3515 3895 4070 4510 4810 5210 5291 5330 5434 5731 5863 6773 7030 7585 7733 7790 8569 9139 9899 10127 10582 11462 11726 13546 13585 15170 15466 16687 17138 18278 19277 19721 19798 20254 21361 26455 27170 28655 28823 29315 33374 33865 38554 38665 39442 42722 42845 45695 49495 50635 52910 57310 57646 58630 67730 74503 77330 83435 85690 91390 96385 98605 98990 100529 101270 106805 108889 111397 128687 144115 149006 166870 192770 197210 201058 212047 213610 216931 217778 222794 234971 250601 257374 277693 288230 317053 366263 372515 374699 405859 424094 433862 469942 501202 502645 544445 555386 556985 634106 643435 732526 745030 749398 790357 811718 1005290 1060235 1084655 1088890 1113970 1174855 1253005 1286870 1388465 1415557 1580714 1585265 1831315 1873495 2029295 2120470 2169310 2349710 2506010 2756611 2776930 2831114 3054623 3170530 3662630 3746990 3951785 4028893 4058590 4121689 4464449 4761419 5276167 5513222 6109246 7077785 7903570 8057786 8243378 8693927 8928898 9522838 10274641 10552334 13783055 14155570 15016783 15273115 17387854 20144465 20549282 20608445 22322245 23807095 26380835 27566110 30033566 30546230 40288930 41216890 43469635 44644490 47614190 51373205 52375609 52761670 58037837 75083915 86939270 102746410 104751218 113021051 116075674 150167830 165184613 195218179 226042102 261878045 290189185 330369226 390436358 523756090 565105255 580378370 825923065 976090895 1130210510 1651846130 1952181790 2147399969 4294799938 10736999845 21473999690
• Sum of all divisors σ(n): 50386613760
• Sum of proper divisors (its aliquot sum) s(n): 28912614070
• 21473999690 is an abundant number, because the sum of its proper divisors (28912614070) is greater than itself. Its abundance is 7438614380

Bases of 21473999690

• Binary: 10011111111111100110011101101001010₂
• Hexadecimal: 0x4FFF33B4A
• Base-36: 9V52C7E

Squares and roots of 21473999690

• 21473999690 squared (21473999690²) is 461132662686120096100
• 21473999690 cubed (21473999690³) is 9902362655570617510954170209000
• The square root of 21473999690 is 146540.0958441067
• The cube root of 21473999690 is 2779.5275360331

Scales and comparisons

• 21,473,999,690 seconds is equal to 682 years, 41 weeks, 6 days, 15 hours, 54 minutes, 50 seconds.
• To count from 1 to 21,473,999,690 would take you about one thousand, three hundred sixty-five 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 21473999690 cubic inches would be around 231.6 feet tall.

Recreational maths with 21473999690

• 21473999690 backwards is 09699937412
• The number of decimal digits it has is: 11
• The sum of 21473999690's digits is 59
• More coming soon!