21248834490

Names of 21248834490

• Cardinal: 21248834490 can be written as Twenty-one billion, two hundred forty-eight million, eight hundred thirty-four thousand, four hundred ninety.

Scientific notation

• Scientific notation: 2.124883449 × 10¹⁰

Factors of 21248834490

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 106249

Divisors of 21248834490

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 19 26 27 30 38 39 45 54 57 65 78 81 90 95 114 117 130 135 162 171 190 195 234 247 270 285 342 351 390 405 494 513 570 585 702 741 810 855 1026 1053 1170 1235 1482 1539 1710 1755 2106 2223 2470 2565 3078 3510 3705 4446 5130 5265 6669 7410 7695 10530 11115 13338 15390 20007 22230 33345 40014 66690 100035 106207 200070 212414 318621 531035 637242 955863 1062070 1380691 1593105 1911726 2017933 2761382 2867589 3186210 4035866 4142073 4779315 5735178 6053799 6903455 8284146 8602767 9558630 10089665 12107598 12426219 13806910 14337945 17205534 18161397 20179330 20710365 24852438 26233129 28675890 30268995 36322794 37278657 41420730 43013835 52466258 54484191 60537990 62131095 74557314 78699387 86027670 90806985 108968382 111835971 124262190 131165645 157398774 163452573 181613970 186393285 223671942 236098161 262331290 272420955 326905146 372786570 393496935 472196322 544841910 559179855 708294483 786993870 817262865 1118359710 1180490805 1416588966 1634525730 2124883449 2360981610 3541472415 4249766898 7082944830 10624417245 21248834490
• Sum of all divisors σ(n): 64769886720
• Sum of proper divisors (its aliquot sum) s(n): 43521052230
• 21248834490 is an abundant number, because the sum of its proper divisors (43521052230) is greater than itself. Its abundance is 22272217740

Bases of 21248834490

• Binary: 10011110010100001110111101110111010₂
• Hexadecimal: 0x4F2877BBA
• Base-36: 9RF09MI

Squares and roots of 21248834490

• 21248834490 squared (21248834490²) is 451512967183413560100
• 21248834490 cubed (21248834490³) is 9594124309769156211786567849000
• The square root of 21248834490 is 145769.7996499961
• The cube root of 21248834490 is 2769.7784880231

Scales and comparisons

• 21,248,834,490 seconds is equal to 675 years, 33 weeks, 4 days, 14 hours, 1 minute, 30 seconds.
• To count from 1 to 21,248,834,490 would take you about one thousand, three hundred fifty-one 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 21248834490 cubic inches would be around 230.8 feet tall.

Recreational maths with 21248834490

• 21248834490 backwards is 09443884212
• 21248834490 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21248834490's digits is 45
• More coming soon!