21521127888
21,521,127,888 is an even composite number composed of five prime numbers multiplied together.
21521127888 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred seventy divisors.
Prime factorization of 21521127888:
24 × 32 × 132 × 672 × 197
(2 × 2 × 2 × 2 × 3 × 3 × 13 × 13 × 67 × 67 × 197)See below for interesting mathematical facts about the number 21521127888 from the Numbermatics database.
Names of 21521127888
- Cardinal: 21521127888 can be written as Twenty-one billion, five hundred twenty-one million, one hundred twenty-seven thousand, eight hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1521127888 × 1010
Factors of 21521127888
Divisors of 21521127888
- Number of divisors d(n): 270
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 67 72 78 104 117 134 144 156 169 197 201 208 234 268 312 338 394 402 468 507 536 591 603 624 676 788 804 871 936 1014 1072 1182 1206 1352 1521 1576 1608 1742 1773 1872 2028 2364 2412 2561 2613 2704 3042 3152 3216 3484 3546 4056 4489 4728 4824 5122 5226 6084 6968 7092 7683 7839 8112 8978 9456 9648 10244 10452 11323 12168 13199 13467 13936 14184 15366 15678 17956 20488 20904 22646 23049 24336 26398 26934 28368 30732 31356 33293 33969 35912 39597 40401 40976 41808 45292 46098 52796 53868 58357 61464 62712 66586 67938 71824 79194 80802 90584 92196 99879 101907 105592 107736 116714 118791 122928 125424 133172 135876 158388 161604 171587 175071 181168 184392 199758 203814 211184 215472 233428 237582 266344 271752 299637 316776 323208 343174 350142 368784 399516 407628 466856 475164 514761 525213 532688 543504 599274 633552 646416 686348 700284 758641 799032 815256 884333 933712 950328 1029522 1050426 1198548 1372696 1400568 1517282 1544283 1598064 1630512 1768666 1900656 2059044 2100852 2230631 2275923 2397096 2652999 2745392 2801136 3034564 3088566 3537332 4118088 4201704 4461262 4551846 4794192 5305998 6069128 6177132 6691893 6827769 7074664 7958997 8236176 8403408 8922524 9103692 10611996 11496329 12138256 12354264 13383786 13655538 14149328 15917994 17845048 18207384 20075679 21223992 22992658 24708528 26767572 27311076 31835988 34488987 35690096 36414768 40151358 42447984 45985316 53535144 54622152 63671976 68977974 80302716 91970632 103466961 107070288 109244304 127343952 137955948 149452277 160605432 183941264 206933922 275911896 298904554 321210864 413867844 448356831 551823792 597809108 827735688 896713662 1195618216 1345070493 1655471376 1793427324 2391236432 2690140986 3586854648 5380281972 7173709296 10760563944 21521127888
- Sum of all divisors σ(n): 66542690214
- Sum of proper divisors (its aliquot sum) s(n): 45021562326
- 21521127888 is an abundant number, because the sum of its proper divisors (45021562326) is greater than itself. Its abundance is 23500434438
Bases of 21521127888
- Binary: 101000000101100001001011001110100002
- Hexadecimal: 0x502C259D0
- Base-36: 9VX4GK0
Squares and roots of 21521127888
- 21521127888 squared (215211278882) is 463158945571651340544
- 21521127888 cubed (215211278883) is 9967702900118739767194063491072
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The
square root of 21521127888 is 146700.8107953055 -
The
cube root of 21521127888 is 2781.5594259665
Scales and comparisons
How big is 21521127888?- 21,521,127,888 seconds is equal to 684 years, 15 weeks, 6 days, 3 hours, 4 minutes, 48 seconds.
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To count from 1 to 21,521,127,888 would take you about one thousand, three hundred sixty-eight 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 21521127888 cubic inches would be around 231.8 feet tall.
Recreational maths with 21521127888
- 21521127888 backwards is 88872112512
- The number of decimal digits it has is: 11
- The sum of 21521127888's digits is 45
- More coming soon!
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