21321338688
21,321,338,688 is an even composite number composed of five prime numbers multiplied together.
21321338688 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 21321338688:
26 × 32 × 13 × 472 × 1289
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 13 × 47 × 47 × 1289)See below for interesting mathematical facts about the number 21321338688 from the Numbermatics database.
Names of 21321338688
- Cardinal: 21321338688 can be written as Twenty-one billion, three hundred twenty-one million, three hundred thirty-eight thousand, six hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1321338688 × 1010
Factors of 21321338688
Divisors of 21321338688
- Number of divisors d(n): 252
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 47 48 52 64 72 78 94 96 104 117 141 144 156 188 192 208 234 282 288 312 376 416 423 468 564 576 611 624 752 832 846 936 1128 1222 1248 1289 1504 1692 1833 1872 2209 2256 2444 2496 2578 3008 3384 3666 3744 3867 4418 4512 4888 5156 5499 6627 6768 7332 7488 7734 8836 9024 9776 10312 10998 11601 13254 13536 14664 15468 16757 17672 19552 19881 20624 21996 23202 26508 27072 28717 29328 30936 33514 35344 39104 39762 41248 43992 46404 50271 53016 57434 58656 60583 61872 67028 70688 79524 82496 86151 87984 92808 100542 106032 114868 117312 121166 123744 134056 141376 150813 159048 172302 175968 181749 185616 201084 212064 229736 242332 247488 258453 268112 301626 318096 344604 351936 363498 371232 402168 424128 459472 484664 516906 536224 545247 603252 636192 689208 726996 742464 787579 804336 918944 969328 1033812 1072448 1090494 1206504 1272384 1378416 1453992 1575158 1608672 1837888 1938656 2067624 2180988 2362737 2413008 2756832 2847401 2907984 3150316 3217344 3877312 4135248 4361976 4725474 4826016 5513664 5694802 5815968 6300632 7088211 8270496 8542203 8723952 9450948 9652032 11389604 11631936 12601264 14176422 16540992 17084406 17447904 18901896 22779208 25202528 25626609 28352844 34168812 34895808 37016213 37803792 45558416 50405056 51253218 56705688 68337624 74032426 75607584 91116832 102506436 111048639 113411376 136675248 148064852 151215168 182233664 205012872 222097278 226822752 273350496 296129704 333145917 410025744 444194556 453645504 546700992 592259408 666291834 820051488 888389112 1184518816 1332583668 1640102976 1776778224 2369037632 2665167336 3553556448 5330334672 7107112896 10660669344 21321338688
- Sum of all divisors σ(n): 67297104420
- Sum of proper divisors (its aliquot sum) s(n): 45975765732
- 21321338688 is an abundant number, because the sum of its proper divisors (45975765732) is greater than itself. Its abundance is 24654427044
Bases of 21321338688
- Binary: 100111101101101100111001111010000002
- Hexadecimal: 0x4F6D9CF40
- Base-36: 9SM6A80
Squares and roots of 21321338688
- 21321338688 squared (213213386882) is 454599483448405561344
- 21321338688 cubed (213213386883) is 9692669553993305146998184476672
-
The
square root of 21321338688 is 146018.2820334495 -
The
cube root of 21321338688 is 2772.9252110443
Scales and comparisons
How big is 21321338688?- 21,321,338,688 seconds is equal to 677 years, 49 weeks, 3 days, 18 hours, 4 minutes, 48 seconds.
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To count from 1 to 21,321,338,688 would take you about one thousand, three hundred fifty-five 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 21321338688 cubic inches would be around 231.1 feet tall.
Recreational maths with 21321338688
- 21321338688 backwards is 88683312312
- The number of decimal digits it has is: 11
- The sum of 21321338688's digits is 45
- More coming soon!
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