21012074958

Names of 21012074958

• Cardinal: 21012074958 can be written as Twenty-one billion, twelve million, seventy-four thousand, nine hundred fifty-eight.

Scientific notation

• Scientific notation: 2.1012074958 × 10¹⁰

Factors of 21012074958

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5606

Divisors of 21012074958

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 43 57 86 113 114 129 133 226 258 266 301 339 399 602 678 791 798 817 903 1582 1634 1806 2147 2373 2451 4294 4746 4859 4902 5419 5719 6441 9718 10838 11438 12882 14577 15029 16257 17157 29154 30058 32514 34013 34314 37933 45087 68026 75866 90174 92321 102039 102961 113799 184642 204078 205922 227598 233017 276963 308883 466034 553926 612347 617766 646247 699051 720727 1224694 1292494 1398102 1441454 1631119 1837041 1938741 2162181 3262238 3674082 3877482 4286429 4324362 4427323 4893357 8572858 8854646 9786714 11634593 12859287 13281969 23269186 25718574 26330921 26563938 30991261 34903779 52661842 61982522 69807558 78992763 81442151 92973783 157985526 162884302 184316447 185947566 244326453 368632894 488652906 500287499 552949341 1000574998 1105898682 1500862497 3001724994 3502012493 7004024986 10506037479 21012074958
• Sum of all divisors σ(n): 52198502400
• Sum of proper divisors (its aliquot sum) s(n): 31186427442
• 21012074958 is an abundant number, because the sum of its proper divisors (31186427442) is greater than itself. Its abundance is 10174352484

Bases of 21012074958

• Binary: 10011100100011010101101000111001110₂
• Hexadecimal: 0x4E46AD1CE
• Base-36: 9NI1OSU

Squares and roots of 21012074958

• 21012074958 squared (21012074958²) is 441507294040610701764
• 21012074958 cubed (21012074958³) is 9276984356885058761562150825912
• The square root of 21012074958 is 144955.4240378745
• The cube root of 21012074958 is 2759.4528670231

Scales and comparisons

• 21,012,074,958 seconds is equal to 668 years, 6 weeks, 1 day, 7 hours, 29 minutes, 18 seconds.
• To count from 1 to 21,012,074,958 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 21012074958 cubic inches would be around 230 feet tall.

Recreational maths with 21012074958

• 21012074958 backwards is 85947021012
• The number of decimal digits it has is: 11
• The sum of 21012074958's digits is 39
• More coming soon!