21418235748

Names of 21418235748

• Cardinal: 21418235748 can be written as Twenty-one billion, four hundred eighteen million, two hundred thirty-five thousand, seven hundred forty-eight.

Scientific notation

• Scientific notation: 2.1418235748 × 10¹⁰

Factors of 21418235748

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 414

Divisors of 21418235748

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 49 52 63 78 84 91 98 117 126 147 156 182 196 234 252 273 294 343 364 389 441 468 546 588 637 686 778 819 882 1029 1092 1167 1274 1372 1556 1638 1764 1911 2058 2334 2401 2548 2723 3087 3276 3501 3822 4116 4459 4668 4802 5057 5446 5733 6174 7002 7203 7644 8169 8918 9604 10114 10892 11466 12348 13377 14004 14406 15171 16338 16807 17836 19061 20228 21609 22932 24507 26754 28812 30342 31213 32676 33614 35399 38122 40131 43218 45513 49014 50421 53508 57183 60684 62426 67228 70798 76244 80262 86436 91026 93639 98028 100842 106197 114366 117649 124852 133427 141596 151263 160524 171549 182052 187278 201684 212394 218491 228732 235298 247793 266854 280917 302526 318591 343098 352947 374556 400281 424788 436982 470596 495586 533708 561834 605052 637182 655473 686196 705894 743379 800562 873964 933989 991172 1058841 1123668 1200843 1274364 1310946 1411788 1486758 1529437 1601124 1734551 1867978 1966419 2117682 2230137 2401686 2621892 2801967 2973516 3058874 3469102 3735956 3932838 4235364 4460274 4588311 4803372 5203653 5603934 6117748 6537923 6938204 7865676 8405901 8920548 9176622 10407306 11207868 12141857 13075846 13764933 15610959 16811802 18353244 19613769 20814612 24283714 26151692 27529866 31221918 33623604 36425571 39227538 45765461 48567428 55059732 58841307 62443836 72851142 78455076 84992999 91530922 109276713 117682614 137296383 145702284 169985998 183061844 218553426 235365228 254978997 274592766 339971996 411889149 437106852 509957994 549185532 594950993 764936991 823778298 1019915988 1189901986 1529873982 1647556596 1784852979 2379803972 3059747964 3569705958 5354558937 7139411916 10709117874 21418235748
• Sum of all divisors σ(n): 68197513020
• Sum of proper divisors (its aliquot sum) s(n): 46779277272
• 21418235748 is an abundant number, because the sum of its proper divisors (46779277272) is greater than itself. Its abundance is 25361041524

Bases of 21418235748

• Binary: 10011111100101000000101011101100100₂
• Hexadecimal: 0x4FCA05764
• Base-36: 9U7V4H0

Squares and roots of 21418235748

• 21418235748 squared (21418235748²) is 458740822556905119504
• 21418235748 cubed (21418235748³) is 9825419084755229994804784828992
• The square root of 21418235748 is 146349.7036143223
• The cube root of 21418235748 is 2777.1194801697

Scales and comparisons

• 21,418,235,748 seconds is equal to 681 years, 1 week, 5 days, 5 hours, 55 minutes, 48 seconds.
• To count from 1 to 21,418,235,748 would take you about one thousand, three hundred sixty-two 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 21418235748 cubic inches would be around 231.4 feet tall.

Recreational maths with 21418235748

• 21418235748 backwards is 84753281412
• The number of decimal digits it has is: 11
• The sum of 21418235748's digits is 45
• More coming soon!