21664073520
21,664,073,520 is an even composite number composed of five prime numbers multiplied together.
21664073520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21664073520:
24 × 32 × 5 × 233 × 2473
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 23 × 23 × 23 × 2473)See below for interesting mathematical facts about the number 21664073520 from the Numbermatics database.
Names of 21664073520
- Cardinal: 21664073520 can be written as Twenty-one billion, six hundred sixty-four million, seventy-three thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.166407352 × 1010
Factors of 21664073520
Divisors of 21664073520
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 30 36 40 45 46 48 60 69 72 80 90 92 115 120 138 144 180 184 207 230 240 276 345 360 368 414 460 529 552 690 720 828 920 1035 1058 1104 1380 1587 1656 1840 2070 2116 2473 2645 2760 3174 3312 4140 4232 4761 4946 5290 5520 6348 7419 7935 8280 8464 9522 9892 10580 12167 12365 12696 14838 15870 16560 19044 19784 21160 22257 23805 24334 24730 25392 29676 31740 36501 37095 38088 39568 42320 44514 47610 48668 49460 56879 59352 60835 63480 73002 74190 76176 89028 95220 97336 98920 109503 111285 113758 118704 121670 126960 146004 148380 170637 178056 182505 190440 194672 197840 219006 222570 227516 243340 284395 292008 296760 341274 356112 365010 380880 438012 445140 455032 486680 511911 547515 568790 584016 593520 682548 730020 853185 876024 890280 910064 973360 1023822 1095030 1137580 1308217 1365096 1460040 1706370 1752048 1780560 2047644 2190060 2275160 2559555 2616434 2730192 2920080 3412740 3924651 4095288 4380120 4550320 5119110 5232868 6541085 6825480 7849302 8190576 8760240 10238220 10465736 11773953 13082170 13650960 15698604 19623255 20476440 20931472 23547906 26164340 30088991 31397208 39246510 40952880 47095812 52328680 58869765 60177982 62794416 78493020 90266973 94191624 104657360 117739530 120355964 150444955 156986040 180533946 188383248 235479060 240711928 270800919 300889910 313972080 361067892 451334865 470958120 481423856 541601838 601779820 722135784 902669730 941916240 1083203676 1203559640 1354004595 1444271568 1805339460 2166407352 2407119280 2708009190 3610678920 4332814704 5416018380 7221357840 10832036760 21664073520
- Sum of all divisors σ(n): 76092719040
- Sum of proper divisors (its aliquot sum) s(n): 54428645520
- 21664073520 is an abundant number, because the sum of its proper divisors (54428645520) is greater than itself. Its abundance is 32764572000
Bases of 21664073520
- Binary: 101000010110100011110000111001100002
- Hexadecimal: 0x50B478730
- Base-36: 9YA8A40
Squares and roots of 21664073520
- 21664073520 squared (216640735202) is 469332081479965190400
- 21664073520 cubed (216640735203) is 10167644718476596291866398208000
-
The
square root of 21664073520 is 147187.2056939733 -
The
cube root of 21664073520 is 2787.7043126667
Scales and comparisons
How big is 21664073520?- 21,664,073,520 seconds is equal to 688 years, 44 weeks, 1 day, 14 hours, 12 minutes.
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To count from 1 to 21,664,073,520 would take you about one thousand, three hundred seventy-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 21664073520 cubic inches would be around 232.3 feet tall.
Recreational maths with 21664073520
- 21664073520 backwards is 02537046612
- 21664073520 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21664073520's digits is 36
- More coming soon!
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