21378842688
21,378,842,688 is an even composite number composed of six prime numbers multiplied together.
21378842688 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 21378842688:
26 × 3 × 72 × 29 × 127 × 617
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 29 × 127 × 617)See below for interesting mathematical facts about the number 21378842688 from the Numbermatics database.
Names of 21378842688
- Cardinal: 21378842688 can be written as Twenty-one billion, three hundred seventy-eight million, eight hundred forty-two thousand, six hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1378842688 × 1010
Factors of 21378842688
Divisors of 21378842688
- Number of divisors d(n): 336
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 29 32 42 48 49 56 58 64 84 87 96 98 112 116 127 147 168 174 192 196 203 224 232 254 294 336 348 381 392 406 448 464 508 588 609 617 672 696 762 784 812 889 928 1016 1176 1218 1234 1344 1392 1421 1524 1568 1624 1778 1851 1856 2032 2352 2436 2468 2667 2784 2842 3048 3136 3248 3556 3683 3702 4064 4263 4319 4704 4872 4936 5334 5568 5684 6096 6223 6496 7112 7366 7404 8128 8526 8638 9408 9744 9872 10668 11049 11368 12192 12446 12957 12992 14224 14732 14808 17052 17276 17893 18669 19488 19744 21336 22098 22736 24384 24892 25781 25914 28448 29464 29616 30233 34104 34552 35786 37338 38976 39488 42672 44196 45472 49784 51562 51828 53679 56896 58928 59232 60466 68208 69104 71572 74676 77343 78359 85344 88392 90699 90944 99568 103124 103656 107358 117856 118464 120932 125251 136416 138208 143144 149352 154686 156718 170688 176784 180467 181398 199136 206248 207312 214716 235077 235712 241864 250502 272832 276416 286288 298704 309372 313436 353568 360934 362796 375753 398272 412496 414624 429432 470154 483728 501004 541401 548513 572576 597408 618744 626872 707136 721868 725592 751506 824992 829248 858864 876757 940308 967456 1002008 1082802 1097026 1145152 1194816 1237488 1253744 1443736 1451184 1503012 1645539 1649984 1717728 1753514 1880616 1934912 2004016 2165604 2194052 2272411 2474976 2507488 2630271 2887472 2902368 3006024 3291078 3435456 3507028 3761232 3839591 4008032 4331208 4388104 4544822 4949952 5014976 5260542 5774944 5804736 6012048 6582156 6817233 7014056 7522464 7679182 8016064 8662416 8776208 9089644 10521084 11518773 11549888 12024096 13164312 13634466 14028112 15044928 15358364 15906877 17324832 17552416 18179288 21042168 23037546 24048192 26328624 27268932 28056224 30716728 31813754 34649664 35104832 36358576 42084336 46075092 47720631 52657248 54537864 56112448 61433456 63627508 72717152 84168672 92150184 95441262 105314496 109075728 111348139 122866912 127255016 145434304 168337344 184300368 190882524 218151456 222696278 245733824 254510032 334044417 368600736 381765048 436302912 445392556 509020064 668088834 737201472 763530096 890785112 1018040128 1336177668 1527060192 1781570224 2672355336 3054120384 3563140448 5344710672 7126280896 10689421344 21378842688
- Sum of all divisors σ(n): 68716062720
- Sum of proper divisors (its aliquot sum) s(n): 47337220032
- 21378842688 is an abundant number, because the sum of its proper divisors (47337220032) is greater than itself. Its abundance is 25958377344
Bases of 21378842688
- Binary: 100111110100100011101000000010000002
- Hexadecimal: 0x4FA474040
- Base-36: 9TKESLC
Squares and roots of 21378842688
- 21378842688 squared (213788426882) is 457054914678251065344
- 21378842688 cubed (213788426883) is 9771305120683591660957784604672
-
The
square root of 21378842688 is 146215.0562972227 -
The
cube root of 21378842688 is 2775.4158482067
Scales and comparisons
How big is 21378842688?- 21,378,842,688 seconds is equal to 679 years, 40 weeks, 4 days, 7 hours, 24 minutes, 48 seconds.
-
To count from 1 to 21,378,842,688 would take you about one thousand, three hundred fifty-nine 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 21378842688 cubic inches would be around 231.3 feet tall.
Recreational maths with 21378842688
- 21378842688 backwards is 88624887312
- The number of decimal digits it has is: 11
- The sum of 21378842688's digits is 57
- More coming soon!
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