21481353740

Names of 21481353740

• Cardinal: 21481353740 can be written as Twenty-one billion, four hundred eighty-one million, three hundred fifty-three thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.148135374 × 10¹⁰

Factors of 21481353740

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3566

Divisors of 21481353740

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 10 11 14 20 22 28 35 44 55 61 67 70 77 110 122 134 140 154 220 244 268 305 308 335 385 427 469 610 670 671 737 770 854 938 1220 1340 1342 1474 1540 1708 1876 2135 2345 2684 2948 3355 3413 3685 4087 4270 4690 4697 5159 6710 6826 7370 8174 8540 9380 9394 10318 13420 13652 14740 16348 17065 18788 20435 20636 23485 23891 25795 28609 34130 37543 40870 44957 46970 47782 51590 57218 68260 75086 81740 89914 93940 95564 103180 114436 119455 143045 150172 179828 187715 208193 224785 228671 238910 262801 286090 314699 375430 416386 449570 457342 477820 525602 572180 629398 750860 832772 899140 914684 1040965 1051204 1143355 1258796 1314005 1457351 1573495 1600697 2081930 2286710 2290123 2515381 2628010 2914702 3146990 3201394 4163860 4573420 4580246 5030762 5256020 5829404 6293980 6402788 7286755 8003485 9160492 10061524 11450615 12576905 13948931 14573510 16006970 16030861 17607667 22901230 25153810 27897862 29147020 32013940 32061722 35215334 45802460 50307620 55795724 64123444 69744655 70430668 80154305 88038335 97642517 139489310 153438241 160308610 176076670 195285034 278978620 306876482 320617220 352153340 390570068 488212585 613752964 767191205 976425170 1074067687 1534382410 1952850340 2148135374 3068764820 4296270748 5370338435 10740676870 21481353740
• Sum of all divisors σ(n): 58034285568
• Sum of proper divisors (its aliquot sum) s(n): 36552931828
• 21481353740 is an abundant number, because the sum of its proper divisors (36552931828) is greater than itself. Its abundance is 15071578088

Bases of 21481353740

• Binary: 10100000000011000110111001000001100₂
• Hexadecimal: 0x50063720C
• Base-36: 9V9FYMK

Squares and roots of 21481353740

• 21481353740 squared (21481353740²) is 461448558503011987600
• 21481353740 cubed (21481353740³) is 9912539718016285361096093624000
• The square root of 21481353740 is 146565.1859753877
• The cube root of 21481353740 is 2779.8447949167

Scales and comparisons

• 21,481,353,740 seconds is equal to 683 years, 2 weeks, 18 hours, 42 minutes, 20 seconds.
• To count from 1 to 21,481,353,740 would take you about one thousand, three hundred sixty-six 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 21481353740 cubic inches would be around 231.7 feet tall.

Recreational maths with 21481353740

• 21481353740 backwards is 04735318412
• The number of decimal digits it has is: 11
• The sum of 21481353740's digits is 38
• More coming soon!