21990289464

Names of 21990289464

• Cardinal: 21990289464 can be written as Twenty-one billion, nine hundred ninety million, two hundred eighty-nine thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 2.1990289464 × 10¹⁰

Factors of 21990289464

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8695

Divisors of 21990289464

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 18 19 22 24 26 33 36 38 39 44 52 57 66 72 76 78 88 99 104 114 117 132 143 152 156 169 171 198 209 228 234 247 264 286 312 338 342 396 418 429 456 468 494 507 572 627 676 684 741 792 836 858 936 988 1014 1144 1254 1287 1352 1368 1482 1521 1672 1716 1859 1881 1976 2028 2223 2508 2574 2717 2964 3042 3211 3432 3718 3762 4056 4446 5016 5148 5434 5577 5928 6084 6422 7436 7524 8151 8647 8892 9633 10296 10868 11154 12168 12844 14872 15048 16302 16731 17294 17784 19266 21736 22308 24453 25688 25941 28899 32604 33462 34588 35321 38532 44616 48906 51882 57798 65208 66924 69176 70642 77064 77823 95117 97812 103764 105963 112411 115596 133848 141284 155646 164293 190234 195624 207528 211926 224822 231192 282568 285351 311292 317889 328586 337233 380468 423852 449644 492879 570702 622584 635778 657172 674466 760936 847704 856053 899288 985758 1011699 1141404 1236521 1271556 1314344 1348932 1461343 1478637 1712106 1807223 1971516 2023398 2135809 2282808 2473042 2543112 2697864 2922686 2957274 3424212 3614446 3709563 3943032 4046796 4271618 4384029 4946084 5421669 5845372 5914548 6407427 6848424 7228892 7419126 8093592 8543236 8768058 9892168 10843338 11128689 11690744 11829096 12814854 13152087 14457784 14838252 16074773 16265007 17086472 17536116 19222281 21686676 22257378 23493899 25629708 26304174 27765517 29676504 32149546 32530014 35072232 38444562 43373352 44514756 46987798 48224319 51259416 52608348 55531034 64299092 65060028 70481697 76889124 83296551 89029512 93975596 96448638 105216696 111062068 128598184 130120056 140963394 144672957 153778248 166593102 187951192 192897276 211445091 222124136 249889653 281926788 289345914 305420687 333186204 385794552 422890182 499779306 563853576 578691828 610841374 666372408 845780364 916262061 999558612 1157383656 1221682748 1691560728 1832524122 1999117224 2443365496 2748786183 3665048244 5497572366 7330096488 10995144732 21990289464
• Sum of all divisors σ(n): 74064931200
• Sum of proper divisors (its aliquot sum) s(n): 52074641736
• 21990289464 is an abundant number, because the sum of its proper divisors (52074641736) is greater than itself. Its abundance is 30084352272

Bases of 21990289464

• Binary: 10100011110101110010011000000111000₂
• Hexadecimal: 0x51EB93038
• Base-36: A3OG7Y0

Squares and roots of 21990289464

• 21990289464 squared (21990289464²) is 483572830710509407296
• 21990289464 cubed (21990289464³) is 10633906524249970653334113529344
• The square root of 21990289464 is 148291.2319188157
• The cube root of 21990289464 is 2801.6270078059

Scales and comparisons

• 21,990,289,464 seconds is equal to 699 years, 11 weeks, 4 days, 5 hours, 44 minutes, 24 seconds.
• To count from 1 to 21,990,289,464 would take you about one thousand, three hundred ninety-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 21990289464 cubic inches would be around 233.5 feet tall.

Recreational maths with 21990289464

• 21990289464 backwards is 46498209912
• The number of decimal digits it has is: 11
• The sum of 21990289464's digits is 54
• More coming soon!