21208316101728

Names of 21208316101728

• Cardinal: 21208316101728 can be written as Twenty-one trillion, two hundred eight billion, three hundred sixteen million, one hundred one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1208316101728 × 10¹³

Factors of 21208316101728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 59886197

Divisors of 21208316101728

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 31 32 34 42 48 51 56 62 68 84 93 96 102 112 119 124 136 168 186 204 217 224 238 248 272 336 357 372 408 434 476 496 527 544 651 672 714 744 816 868 952 992 1054 1302 1428 1488 1581 1632 1736 1904 2108 2604 2856 2976 3162 3472 3689 3808 4216 5208 5712 6324 6944 7378 8432 10416 11067 11424 12648 14756 16864 20832 22134 25296 29512 44268 50592 59024 88536 118048 177072 354144 59886137 119772274 179658411 239544548 359316822 419202959 479089096 718633644 838405918 958178192 1018064329 1257608877 1437267288 1676811836 1856470247 1916356384 2036128658 2515217754 2874534576 3054192987 3353623672 3712940494 4072257316 5030435508 5569410741 5749069152 6108385974 6707247344 7126450303 7425880988 8144514632 10060871016 11138821482 12216771948 12995291729 13414494688 14252900606 14851761976 16289029264 20121742032 21379350909 22277642964 24433543896 25990583458 28505801212 29703523952 31559994199 32578058528 38985875187 40243484064 42758701818 44555285928 48867087792 51981166916 57011602424 59407047904 63119988398 77971750374 85517403636 89110571856 94679982597 97734175584 103962333832 114023204848 126239976796 155943500748 171034807272 178221143712 189359965194 207924667664 220919959393 228046409696 252479953592 311887001496 342069614544 378719930388 415849335328 441839918786 504959907184 623774002992 662759878179 684139229088 757439860776 883679837572 1009919814368 1247548005984 1325519756358 1514879721552 1767359675144 2651039512716 3029759443104 3534719350288 5302079025432 7069438700576 10604158050864 21208316101728
• Sum of all divisors σ(n): 69540741623808
• Sum of proper divisors (its aliquot sum) s(n): 48332425522080
• 21208316101728 is an abundant number, because the sum of its proper divisors (48332425522080) is greater than itself. Its abundance is 27124109420352

Bases of 21208316101728

• Binary: 100110100100111110010001001011100010001100000₂
• Hexadecimal: 0x1349F225C460
• Base-36: 7IMYRTOIO

Squares and roots of 21208316101728

• 21208316101728 squared (21208316101728²) is 449792671870815150444585984
• 21208316101728 cubed (21208316101728³) is 9539345165277067812290603662269786980352
• The square root of 21208316101728 is 4605248.7556838881
• The cube root of 21208316101728 is 27680.1684835407

Scales and comparisons

• 21,208,316,101,728 seconds is equal to 674,358 years, 44 weeks, 1 day, 13 hours, 8 minutes, 48 seconds.
• To count from 1 to 21,208,316,101,728 would take you about one million, six hundred eighty-five thousand, eight 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 21208316101728 cubic inches would be around 2306.7 feet tall.

Recreational maths with 21208316101728

• 21208316101728 backwards is 82710161380212
• 21208316101728 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21208316101728's digits is 42
• More coming soon!