21408501408
21,408,501,408 is an even composite number composed of five prime numbers multiplied together.
21408501408 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21408501408:
25 × 3 × 73 × 192 × 1801
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 7 × 19 × 19 × 1801)See below for interesting mathematical facts about the number 21408501408 from the Numbermatics database.
Names of 21408501408
- Cardinal: 21408501408 can be written as Twenty-one billion, four hundred eight million, five hundred one thousand, four hundred eight.
Scientific notation
- Scientific notation: 2.1408501408 × 1010
Factors of 21408501408
Divisors of 21408501408
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 42 48 49 56 57 76 84 96 98 112 114 133 147 152 168 196 224 228 266 294 304 336 343 361 392 399 456 532 588 608 672 686 722 784 798 912 931 1029 1064 1083 1176 1372 1444 1568 1596 1801 1824 1862 2058 2128 2166 2352 2527 2744 2793 2888 3192 3602 3724 4116 4256 4332 4704 5054 5403 5488 5586 5776 6384 6517 7204 7448 7581 8232 8664 10108 10806 10976 11172 11552 12607 12768 13034 14408 14896 15162 16464 17328 17689 19551 20216 21612 22344 25214 26068 28816 29792 30324 32928 34219 34656 35378 37821 39102 40432 43224 44688 50428 52136 53067 57632 60648 68438 70756 75642 78204 80864 86448 88249 89376 100856 102657 104272 106134 121296 123823 136876 141512 151284 156408 172896 176498 201712 205314 208544 212268 239533 242592 247646 264747 273752 283024 302568 312816 352996 371469 403424 410628 424536 479066 495292 529494 547504 566048 605136 617743 625632 650161 705992 718599 742938 821256 849072 958132 990584 1058988 1095008 1210272 1235486 1300322 1411984 1437198 1485876 1642512 1676731 1698144 1853229 1916264 1950483 1981168 2117976 2470972 2600644 2823968 2874396 2971752 3285024 3353462 3706458 3832528 3900966 3962336 4235952 4551127 4941944 5030193 5201288 5748792 5943504 6706924 7412916 7665056 7801932 8471904 9102254 9883888 10060386 10402576 11497584 11737117 11887008 13413848 13653381 14825832 15603864 18204508 19767776 20120772 20805152 22995168 23474234 26827696 27306762 29651664 31207728 31857889 35211351 36409016 40241544 46948468 53655392 54613524 59303328 62415456 63715778 70422702 72818032 80483088 93896936 95573667 109227048 127431556 140845404 145636064 160966176 187793872 191147334 218454096 223005223 254863112 281690808 375587744 382294668 436908192 446010446 509726224 563381616 669015669 764589336 892020892 1019452448 1126763232 1338031338 1529178672 1784041784 2676062676 3058357344 3568083568 5352125352 7136167136 10704250704 21408501408
- Sum of all divisors σ(n): 69205449600
- Sum of proper divisors (its aliquot sum) s(n): 47796948192
- 21408501408 is an abundant number, because the sum of its proper divisors (47796948192) is greater than itself. Its abundance is 26388446784
Bases of 21408501408
- Binary: 100111111000000101111001110101000002
- Hexadecimal: 0x4FC0BCEA0
- Base-36: 9U22HEO
Squares and roots of 21408501408
- 21408501408 squared (214085014082) is 458323932536337982464
- 21408501408 cubed (214085014083) is 9812028555024288708744423309312
-
The
square root of 21408501408 is 146316.4427123623 -
The
cube root of 21408501408 is 2776.6986935395
Scales and comparisons
How big is 21408501408?- 21,408,501,408 seconds is equal to 680 years, 37 weeks, 4 days, 13 hours, 56 minutes, 48 seconds.
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To count from 1 to 21,408,501,408 would take you about one thousand, three hundred sixty-one 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 21408501408 cubic inches would be around 231.4 feet tall.
Recreational maths with 21408501408
- 21408501408 backwards is 80410580412
- The number of decimal digits it has is: 11
- The sum of 21408501408's digits is 33
- More coming soon!
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