21642712500

Names of 21642712500

• Cardinal: 21642712500 can be written as Twenty-one billion, six hundred forty-two million, seven hundred twelve thousand, five hundred.

Scientific notation

• Scientific notation: 2.16427125 × 10¹⁰

Factors of 21642712500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1124

Divisors of 21642712500

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 23 25 30 46 50 60 69 75 92 100 115 125 138 150 230 250 276 300 345 375 460 500 529 575 625 690 750 1058 1091 1150 1250 1380 1500 1587 1725 1875 2116 2182 2300 2500 2645 2875 3125 3174 3273 3450 3750 4364 5290 5455 5750 6250 6348 6546 6900 7500 7935 8625 9375 10580 10910 11500 12500 13092 13225 14375 15870 16365 17250 18750 21820 25093 26450 27275 28750 31740 32730 34500 37500 39675 43125 50186 52900 54550 57500 65460 66125 71875 75279 79350 81825 86250 100372 109100 125465 132250 136375 143750 150558 158700 163650 172500 198375 215625 250930 264500 272750 287500 301116 327300 330625 376395 396750 409125 431250 501860 545500 577139 627325 661250 681875 752790 793500 818250 862500 991875 1154278 1254650 1322500 1363750 1505580 1636500 1653125 1731417 1881975 1983750 2045625 2308556 2509300 2727500 2885695 3136625 3306250 3409375 3462834 3763950 3967500 4091250 4959375 5771390 6273250 6612500 6818750 6925668 7527900 8182500 8657085 9409875 9918750 10228125 11542780 12546500 13637500 14428475 15683125 17314170 18819750 19837500 20456250 28856950 31366250 34628340 37639500 40912500 43285425 47049375 57713900 62732500 72142375 78415625 86570850 94098750 144284750 156831250 173141700 188197500 216427125 235246875 288569500 313662500 360711875 432854250 470493750 721423750 865708500 940987500 1082135625 1442847500 1803559375 2164271250 3607118750 4328542500 5410678125 7214237500 10821356250 21642712500
• Sum of all divisors σ(n): 66044710368
• Sum of proper divisors (its aliquot sum) s(n): 44401997868
• 21642712500 is an abundant number, because the sum of its proper divisors (44401997868) is greater than itself. Its abundance is 22759285368

Bases of 21642712500

• Binary: 10100001010000000011001010110110100₂
• Hexadecimal: 0x50A0195B4
• Base-36: 9XXIFUC

Squares and roots of 21642712500

• 21642712500 squared (21642712500²) is 468407004357656250000
• 21642712500 cubed (21642712500³) is 10137598128299001392578125000000
• The square root of 21642712500 is 147114.6236782733
• The cube root of 21642712500 is 2786.7877754331

Scales and comparisons

• 21,642,712,500 seconds is equal to 688 years, 8 weeks, 6 days, 8 hours, 35 minutes.
• To count from 1 to 21,642,712,500 would take you about one thousand, three hundred seventy-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 21642712500 cubic inches would be around 232.2 feet tall.

Recreational maths with 21642712500

• 21642712500 backwards is 00521724612
• 21642712500 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21642712500's digits is 30
• More coming soon!