21421165392
21,421,165,392 is an even composite number composed of five prime numbers multiplied together.
21421165392 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 21421165392:
24 × 35 × 11 × 37 × 13537
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 11 × 37 × 13537)See below for interesting mathematical facts about the number 21421165392 from the Numbermatics database.
Names of 21421165392
- Cardinal: 21421165392 can be written as Twenty-one billion, four hundred twenty-one million, one hundred sixty-five thousand, three hundred ninety-two.
Scientific notation
- Scientific notation: 2.1421165392 × 1010
Factors of 21421165392
Divisors of 21421165392
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 37 44 48 54 66 72 74 81 88 99 108 111 132 144 148 162 176 198 216 222 243 264 296 297 324 333 396 407 432 444 486 528 592 594 648 666 792 814 888 891 972 999 1188 1221 1296 1332 1584 1628 1776 1782 1944 1998 2376 2442 2664 2673 2997 3256 3564 3663 3888 3996 4752 4884 5328 5346 5994 6512 7128 7326 7992 8991 9768 10692 10989 11988 13537 14256 14652 15984 17982 19536 21384 21978 23976 27074 29304 32967 35964 40611 42768 43956 47952 54148 58608 65934 71928 81222 87912 98901 108296 121833 131868 143856 148907 162444 175824 197802 216592 243666 263736 297814 324888 365499 395604 446721 487332 500869 527472 595628 649776 730998 791208 893442 974664 1001738 1096497 1191256 1340163 1461996 1502607 1582416 1786884 1949328 2003476 2192994 2382512 2680326 2923992 3005214 3289491 3573768 4006952 4020489 4385988 4507821 5360652 5509559 5847984 6010428 6578982 7147536 8013904 8040978 8771976 9015642 10721304 11019118 12020856 12061467 13157964 13523463 16081956 16528677 17543952 18031284 21442608 22038236 24041712 24122934 26315928 27046926 32163912 33057354 36062568 36184401 40570389 44076472 48245868 49586031 52631856 54093852 64327824 66114708 72125136 72368802 81140778 88152944 96491736 99172062 108187704 121711167 132229416 144737604 148758093 162281556 192983472 198344124 216375408 243422334 264458832 289475208 297516186 324563112 396688248 446274279 486844668 578950416 595032372 649126224 793376496 892548558 973689336 1190064744 1338822837 1785097116 1947378672 2380129488 2677645674 3570194232 5355291348 7140388464 10710582696 21421165392
- Sum of all divisors σ(n): 69659833152
- Sum of proper divisors (its aliquot sum) s(n): 48238667760
- 21421165392 is an abundant number, because the sum of its proper divisors (48238667760) is greater than itself. Its abundance is 26817502368
Bases of 21421165392
- Binary: 100111111001100110100001011010100002
- Hexadecimal: 0x4FCCD0B50
- Base-36: 9U9LX00
Squares and roots of 21421165392
- 21421165392 squared (214211653922) is 458866326751418513664
- 21421165392 cubed (214211653923) is 9829451478161650051807355916288
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The
square root of 21421165392 is 146359.7123254893 -
The
cube root of 21421165392 is 2777.2460950255
Scales and comparisons
How big is 21421165392?- 21,421,165,392 seconds is equal to 681 years, 6 weeks, 4 days, 3 hours, 43 minutes, 12 seconds.
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To count from 1 to 21,421,165,392 would take you about one thousand, three hundred sixty-two 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 21421165392 cubic inches would be around 231.4 feet tall.
Recreational maths with 21421165392
- 21421165392 backwards is 29356112412
- 21421165392 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21421165392's digits is 36
- More coming soon!
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