21012880328

Names of 21012880328

• Cardinal: 21012880328 can be written as Twenty-one billion, twelve million, eight hundred eighty thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1012880328 × 10¹⁰

Factors of 21012880328

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 264

Divisors of 21012880328

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 11 17 22 34 44 61 68 88 121 122 136 173 187 242 244 346 374 484 488 671 692 748 968 1037 1331 1342 1384 1496 1903 2057 2074 2662 2684 2941 3806 4114 4148 5324 5368 5882 7381 7612 8228 8296 10553 10648 11407 11764 14641 14762 15224 16456 20933 21106 22627 22814 23528 29282 29524 32351 41866 42212 45254 45628 58564 59048 64702 81191 83732 84424 90508 91256 116083 117128 125477 129404 162382 167464 179401 181016 230263 232166 248897 250954 258808 324764 355861 358802 460526 464332 497794 501908 649528 711722 717604 893101 921052 928664 995588 1003816 1276913 1380247 1423444 1435208 1786202 1842104 1973411 1991176 2532893 2553826 2760494 2846888 3572404 3914471 3946822 5065786 5107652 5520988 7144808 7828942 7893644 10131572 10215304 11041976 14046043 15182717 15657884 15787288 20263144 21707521 28092086 30365434 31315768 43059181 43415042 56184172 60730868 86118362 86830084 112368344 121461736 154506473 172236724 173660168 238782731 309012946 344473448 477565462 618025892 955130924 1236051784 1910261848 2626610041 5253220082 10506440164 21012880328
• Sum of all divisors σ(n): 46909999800
• Sum of proper divisors (its aliquot sum) s(n): 25897119472
• 21012880328 is an abundant number, because the sum of its proper divisors (25897119472) is greater than itself. Its abundance is 4884239144

Bases of 21012880328

• Binary: 10011100100011101110001101111001000₂
• Hexadecimal: 0x4E4771BC8
• Base-36: 9NIIY88

Squares and roots of 21012880328

• 21012880328 squared (21012880328²) is 441541139678849387584
• 21012880328 cubed (21012880328³) is 9278051127960394534038681047552
• The square root of 21012880328 is 144958.2020031981
• The cube root of 21012880328 is 2759.4881221827

Scales and comparisons

• 21,012,880,328 seconds is equal to 668 years, 7 weeks, 3 days, 15 hours, 12 minutes, 8 seconds.
• To count from 1 to 21,012,880,328 would take you about one thousand, three hundred thirty-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 21012880328 cubic inches would be around 230 feet tall.

Recreational maths with 21012880328

• 21012880328 backwards is 82308821012
• The number of decimal digits it has is: 11
• The sum of 21012880328's digits is 35
• More coming soon!