21243294315428850

Names of 21243294315428850

• Cardinal: 21243294315428850 can be written as Twenty-one quadrillion, two hundred forty-three trillion, two hundred ninety-four billion, three hundred fifteen million, four hundred twenty-eight thousand, eight hundred fifty.

Scientific notation

• Scientific notation: 2.124329431542885 × 10¹⁶

Factors of 21243294315428850

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 65474786113

Divisors of 21243294315428850

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 25 30 35 42 45 50 63 70 75 90 103 105 126 150 175 206 210 225 309 315 350 450 515 525 618 630 721 927 1030 1050 1442 1545 1575 1854 2163 2575 3090 3150 3605 4326 4635 5150 6489 7210 7725 9270 10815 12978 15450 18025 21630 23175 32445 36050 46350 54075 64890 108150 162225 324450 65474785993 130949571986 196424357979 327373929965 392848715958 458323501951 589273073937 654747859930 916647003902 982121789895 1178546147874 1374970505853 1636869649825 1964243579790 2291617509755 2749941011706 2946365369685 3273739299650 4124911517559 4583235019510 4910608949475 5892730739370 6743902957279 6874852529265 8249823035118 9821217898950 11458087548775 13487805914558 13749705058530 14731826848425 20231708871837 20624557587795 22916175097550 29463653696850 33719514786395 34374262646325 40463417743674 41249115175590 47207320700953 60695126615511 67439029572790 68748525292650 94414641401906 101158544359185 103122787938975 121390253231022 141621962102859 168597573931975 202317088718370 206245575877950 236036603504765 283243924205718 303475633077555 337195147863950 424865886308577 472073207009530 505792721795925 606951266155110 708109810514295 849731772617154 1011585443591850 1180183017523825 1416219621028590 1517378165387775 2124329431542885 2360366035047650 3034756330775550 3540549052571475 4248658863085770 7081098105142950 10621647157714425 21243294315428850
• Sum of all divisors σ(n): 65860301533932672
• Sum of proper divisors (its aliquot sum) s(n): 44617007218503822
• 21243294315428850 is an abundant number, because the sum of its proper divisors (44617007218503822) is greater than itself. Its abundance is 23373712903074972

Bases of 21243294315428850

• Binary: 1001011011110001010100111100011100001111011101111110010₂
• Hexadecimal: 0x4B78A9E387BBF2
• Base-36: 5T64AOLSU0I

Squares and roots of 21243294315428850

• 21243294315428850 squared (21243294315428850²) is 451277553371931692759159412322500
• 21243294315428850 cubed (21243294315428850³) is 9586621884226595988122530714409070710562004125000
• The square root of 21243294315428850 is 145750795.2480151993
• The cube root of 21243294315428850 is 276953.7747130195

Scales and comparisons

• 21,243,294,315,428,850 seconds is equal to 675,471,049 years, 21 weeks, 1 day, 3 hours, 7 minutes, 30 seconds.
• To count from 1 to 21,243,294,315,428,850 would take you about two billion, twenty-six million, four hundred thirteen thousand, one hundred forty-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 21243294315428850 cubic inches would be around 23079.5 feet tall.

Recreational maths with 21243294315428850

• 21243294315428850 backwards is 05882451349234212
• 21243294315428850 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21243294315428850's digits is 63
• More coming soon!