21017621628
21,017,621,628 is an even composite number composed of seven prime numbers multiplied together.
21017621628 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21017621628:
22 × 32 × 17 × 19 × 23 × 89 × 883
(2 × 2 × 3 × 3 × 17 × 19 × 23 × 89 × 883)See below for interesting mathematical facts about the number 21017621628 from the Numbermatics database.
Names of 21017621628
- Cardinal: 21017621628 can be written as Twenty-one billion, seventeen million, six hundred twenty-one thousand, six hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1017621628 × 1010
Factors of 21017621628
Divisors of 21017621628
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 9 12 17 18 19 23 34 36 38 46 51 57 68 69 76 89 92 102 114 138 153 171 178 204 207 228 267 276 306 323 342 356 391 414 437 534 612 646 684 782 801 828 874 883 969 1068 1173 1292 1311 1513 1564 1602 1691 1748 1766 1938 2047 2346 2622 2649 2907 3026 3204 3382 3519 3532 3876 3933 4094 4539 4692 5073 5244 5298 5814 6052 6141 6764 7038 7429 7866 7947 8188 9078 10146 10596 11628 12282 13617 14076 14858 15011 15219 15732 15894 16777 18156 18423 20292 20309 22287 24564 27234 28747 29716 30022 30438 31788 33554 34799 36846 38893 40618 44574 45033 50331 54468 57494 60044 60876 60927 66861 67108 69598 73692 77786 78587 81236 86241 89148 90066 100662 104397 114988 116679 121854 133722 135099 139196 150993 155572 157174 172482 180132 182781 201324 208794 233358 235761 243708 258723 267444 270198 285209 301986 313191 314348 344964 345253 350037 365562 385871 417588 466716 471522 517446 540396 570418 603972 626382 661181 690506 700074 707283 731124 771742 855627 943044 1034892 1035759 1140836 1157613 1252764 1322362 1335979 1381012 1400148 1414566 1493153 1543484 1711254 1807501 1983543 2071518 2315226 2566881 2644724 2671958 2829132 2986306 3107277 3422508 3472839 3615002 3967086 4007937 4143036 4479459 4630452 5133762 5343916 5422503 5950629 5972612 6214554 6559807 6945678 7230004 7934172 8015874 8958918 10267524 10845006 11901258 12023811 12429108 13119614 13438377 13891356 16031748 16267509 17917836 19679421 21690012 23802516 24047622 25383601 26239228 26876754 30727517 32535018 34342519 39358842 48095244 50767202 53753508 59038263 61455034 65070036 68685038 76150803 78717684 92182551 101534404 103027557 118076526 122910068 137370076 152301606 184365102 206055114 228452409 236153052 276547653 304603212 309082671 368730204 412110228 456904818 553095306 583822823 618165342 913809636 1106190612 1167645646 1236330684 1751468469 2335291292 3502936938 5254405407 7005873876 10508810814 21017621628
- Sum of all divisors σ(n): 62553254400
- Sum of proper divisors (its aliquot sum) s(n): 41535632772
- 21017621628 is an abundant number, because the sum of its proper divisors (41535632772) is greater than itself. Its abundance is 20518011144
Bases of 21017621628
- Binary: 100111001001011111101110100011111002
- Hexadecimal: 0x4E4BF747C
- Base-36: 9NLCKN0
Squares and roots of 21017621628
- 21017621628 squared (210176216282) is 441740418897773370384
- 21017621628 cubed (210176216283) is 9284332982187621510425213065152
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The
square root of 21017621628 is 144974.5551053701 -
The
cube root of 21017621628 is 2759.6956548471
Scales and comparisons
How big is 21017621628?- 21,017,621,628 seconds is equal to 668 years, 15 weeks, 2 days, 12 hours, 13 minutes, 48 seconds.
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To count from 1 to 21,017,621,628 would take you about one thousand, three hundred thirty-six 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 21017621628 cubic inches would be around 230 feet tall.
Recreational maths with 21017621628
- 21017621628 backwards is 82612671012
- 21017621628 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21017621628's digits is 36
- More coming soon!
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