21150246390

Names of 21150246390

• Cardinal: 21150246390 can be written as Twenty-one billion, one hundred fifty million, two hundred forty-six thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.115024639 × 10¹⁰

Factors of 21150246390

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2095

Divisors of 21150246390

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 7 10 13 14 15 21 23 26 30 35 39 42 46 65 69 70 78 91 105 115 130 138 161 181 182 195 210 230 273 299 322 345 362 390 455 483 543 546 598 690 805 897 905 910 966 1086 1267 1365 1495 1610 1794 1810 1861 2093 2353 2415 2534 2715 2730 2990 3722 3801 4163 4186 4485 4706 4830 5430 5583 6279 6335 7059 7602 8326 8970 9305 10465 11166 11765 12489 12558 12670 13027 14118 16471 18610 19005 20815 20930 23530 24193 24978 26054 27915 29141 31395 32942 35295 38010 39081 41630 42803 48386 49413 54119 55830 58282 62445 62790 65135 70590 72579 78162 82355 85606 87423 98826 108238 120965 124890 128409 130270 145158 145705 162357 164710 169351 174846 195405 214015 241930 247065 256818 270595 291410 299621 324714 336841 338702 362895 378833 390810 428030 437115 494130 508053 541190 556439 599242 642045 673682 725790 757666 811785 846755 874230 898863 1010523 1016106 1112878 1136499 1284090 1498105 1623570 1669317 1684205 1693510 1797726 1894165 2021046 2272998 2357887 2540265 2782195 2996210 3338634 3368410 3788330 3895073 4378933 4494315 4715774 5052615 5080530 5564390 5682495 7073661 7747343 7790146 8346585 8757866 8988630 10105230 11364990 11685219 11789435 13136799 14147322 15494686 16693170 19475365 21894665 23242029 23370438 23578870 26273598 30652531 35368305 38736715 38950730 43789330 46484058 54231401 58426095 61305062 65683995 70736610 77473430 91957593 100715459 108462802 116210145 116852190 131367990 153262655 162694203 183915186 201430918 232420290 271157005 302146377 306525310 325388406 459787965 503577295 542314010 604292754 705008213 813471015 919575930 1007154590 1410016426 1510731885 1626942030 2115024639 3021463770 3525041065 4230049278 7050082130 10575123195 21150246390
• Sum of all divisors σ(n): 65586253824
• Sum of proper divisors (its aliquot sum) s(n): 44436007434
• 21150246390 is an abundant number, because the sum of its proper divisors (44436007434) is greater than itself. Its abundance is 23285761044

Bases of 21150246390

• Binary: 10011101100101001110010010111110110₂
• Hexadecimal: 0x4ECA725F6
• Base-36: 9PSB6K6

Squares and roots of 21150246390

• 21150246390 squared (21150246390²) is 447332922357708032100
• 21150246390 cubed (21150246390³) is 9461201526224264594597029119000
• The square root of 21150246390 is 145431.2428262925
• The cube root of 21150246390 is 2765.4882039803

Scales and comparisons

• 21,150,246,390 seconds is equal to 672 years, 26 weeks, 4 days, 12 hours, 26 minutes, 30 seconds.
• To count from 1 to 21,150,246,390 would take you about one thousand, three hundred forty-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 21150246390 cubic inches would be around 230.5 feet tall.

Recreational maths with 21150246390

• 21150246390 backwards is 09364205112
• The number of decimal digits it has is: 11
• The sum of 21150246390's digits is 33
• More coming soon!