21972342768

Names of 21972342768

• Cardinal: 21972342768 can be written as Twenty-one billion, nine hundred seventy-two million, three hundred forty-two thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1972342768 × 10¹⁰

Factors of 21972342768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 171

Divisors of 21972342768

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 29 48 58 87 116 137 174 232 274 348 411 464 548 696 822 841 1096 1392 1644 1682 2192 2523 3288 3364 3973 5046 6576 6728 7946 10092 11919 13456 15892 18769 20184 23838 24389 31784 37538 40368 47676 48778 56307 63568 73167 75076 95352 97556 112614 115217 146334 150152 190704 195112 225228 230434 292668 300304 345651 390224 450456 460868 544301 585336 691302 900912 921736 1088602 1170672 1382604 1632903 1843472 2177204 2765208 3265806 3341293 4354408 5530416 6531612 6682586 8708816 10023879 13063224 13365172 15784729 20047758 26126448 26730344 31569458 40095516 47354187 53460688 63138916 80191032 94708374 126277832 160382064 189416748 252555664 378833496 457757141 757666992 915514282 1373271423 1831028564 2746542846 3662057128 5493085692 7324114256 10986171384 21972342768
• Sum of all divisors σ(n): 59221261680
• Sum of proper divisors (its aliquot sum) s(n): 37248918912
• 21972342768 is an abundant number, because the sum of its proper divisors (37248918912) is greater than itself. Its abundance is 15276576144

Bases of 21972342768

• Binary: 10100011101101001110101011111110000₂
• Hexadecimal: 0x51DA757F0
• Base-36: A3DRK6O

Squares and roots of 21972342768

• 21972342768 squared (21972342768²) is 482783846714481901824
• 21972342768 cubed (21972342768³) is 10607892162864166976409452408832
• The square root of 21972342768 is 148230.7079116875
• The cube root of 21972342768 is 2800.8646465731

Scales and comparisons

• 21,972,342,768 seconds is equal to 698 years, 33 weeks, 6 days, 12 hours, 32 minutes, 48 seconds.
• To count from 1 to 21,972,342,768 would take you about one thousand, three hundred ninety-seven 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 21972342768 cubic inches would be around 233.4 feet tall.

Recreational maths with 21972342768

• 21972342768 backwards is 86724327912
• The number of decimal digits it has is: 11
• The sum of 21972342768's digits is 51
• More coming soon!