20729793871872

Names of 20729793871872

• Cardinal: 20729793871872 can be written as Twenty trillion, seven hundred twenty-nine billion, seven hundred ninety-three million, eight hundred seventy-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.0729793871872 × 10¹³

Factors of 20729793871872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 31
• Sum of prime factors: 136

Divisors of 20729793871872

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 131 144 192 256 262 288 384 393 512 524 576 768 786 1024 1048 1152 1179 1536 1572 2048 2096 2304 2358 3072 3144 4096 4192 4608 4716 6144 6288 8192 8384 9216 9432 12288 12576 16384 16768 17161 18432 18864 24576 25152 32768 33536 34322 36864 37728 49152 50304 51483 65536 67072 68644 73728 75456 98304 100608 102966 131072 134144 137288 147456 150912 154449 196608 201216 205932 262144 268288 274576 294912 301824 308898 393216 402432 411864 524288 536576 549152 589824 603648 617796 786432 804864 823728 1048576 1073152 1098304 1179648 1207296 1235592 1572864 1609728 1647456 2097152 2146304 2196608 2359296 2414592 2471184 3145728 3219456 3294912 4194304 4292608 4393216 4718592 4829184 4942368 6291456 6438912 6589824 8388608 8585216 8786432 9437184 9658368 9884736 12582912 12877824 13179648 16777216 17170432 17572864 18874368 19316736 19769472 25165824 25755648 26359296 33554432 34340864 35145728 37748736 38633472 39538944 50331648 51511296 52718592 67108864 68681728 70291456 75497472 77266944 79077888 100663296 103022592 105437184 134217728 137363456 140582912 150994944 154533888 158155776 201326592 206045184 210874368 274726912 281165824 301989888 309067776 316311552 402653184 412090368 421748736 549453824 562331648 603979776 618135552 632623104 824180736 843497472 1098907648 1124663296 1207959552 1236271104 1265246208 1648361472 1686994944 2197815296 2249326592 2472542208 2530492416 3296722944 3373989888 4395630592 4498653184 4945084416 5060984832 6593445888 6747979776 8791261184 8997306368 9890168832 10121969664 13186891776 13495959552 17582522368 17994612736 19780337664 20243939328 26373783552 26991919104 35989225472 39560675328 40487878656 52747567104 53983838208 71978450944 79121350656 80975757312 107967676416 143956901888 158242701312 161951514624 215935352832 287913803776 323903029248 431870705664 575827607552 647806058496 863741411328 1151655215104 1295612116992 1727482822656 2303310430208 2591224233984 3454965645312 5182448467968 6909931290624 10364896935936 20729793871872
• Sum of all divisors σ(n): 60346706203095
• Sum of proper divisors (its aliquot sum) s(n): 39616912331223
• 20729793871872 is an abundant number, because the sum of its proper divisors (39616912331223) is greater than itself. Its abundance is 18887118459351

Bases of 20729793871872

• Binary: 100101101101010001000000000000000000000000000₂
• Hexadecimal: 0x12DA88000000
• Base-36: 7CJ4W1KW0

Squares and roots of 20729793871872

• 20729793871872 squared (20729793871872²) is 429724353970301925152784384
• 20729793871872 cubed (20729793871872³) is 8908097279527719000713793740760938446848
• The square root of 20729793871872 is 4552998.3386634351
• The cube root of 20729793871872 is 27470.4007132067

Scales and comparisons

• 20,729,793,871,872 seconds is equal to 659,143 years, 16 weeks, 5 days, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,729,793,871,872 would take you about one million, six hundred forty-seven thousand, eight hundred fifty-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 20729793871872 cubic inches would be around 2289.2 feet tall.

Recreational maths with 20729793871872

• 20729793871872 backwards is 27817839792702
• 20729793871872 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20729793871872's digits is 72
• More coming soon!