21357028770
21,357,028,770 is an even composite number composed of seven prime numbers multiplied together.
21357028770 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21357028770:
2 × 3 × 5 × 73 × 112 × 17 × 1009
(2 × 3 × 5 × 7 × 7 × 7 × 11 × 11 × 17 × 1009)See below for interesting mathematical facts about the number 21357028770 from the Numbermatics database.
Names of 21357028770
- Cardinal: 21357028770 can be written as Twenty-one billion, three hundred fifty-seven million, twenty-eight thousand, seven hundred seventy.
Scientific notation
- Scientific notation: 2.135702877 × 1010
Factors of 21357028770
Divisors of 21357028770
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 7 10 11 14 15 17 21 22 30 33 34 35 42 49 51 55 66 70 77 85 98 102 105 110 119 121 147 154 165 170 187 210 231 238 242 245 255 294 330 343 357 363 374 385 462 490 510 539 561 595 605 686 714 726 735 770 833 847 935 1009 1029 1078 1122 1155 1190 1210 1309 1470 1617 1666 1694 1715 1785 1815 1870 2018 2057 2058 2310 2499 2541 2618 2695 2805 3027 3234 3430 3570 3630 3773 3927 4114 4165 4235 4998 5045 5082 5145 5390 5610 5831 5929 6054 6171 6545 7063 7546 7854 8085 8330 8470 9163 10090 10285 10290 11099 11319 11662 11858 12342 12495 12705 13090 14126 14399 15135 16170 17153 17493 17787 18326 18865 19635 20570 21189 22198 22638 24990 25410 27489 28798 29155 29645 30270 30855 33297 34306 34986 35315 35574 37730 39270 41503 42378 43197 45815 49441 51459 54978 55495 56595 58310 59290 61710 64141 66594 70630 71995 77693 83006 85765 86394 87465 88935 91630 98882 100793 102918 105945 110990 113190 120071 122089 124509 128282 137445 143990 148323 155386 166485 171530 174930 177870 188683 192423 201586 207515 211890 215985 233079 240142 244178 247205 249018 257295 274890 296646 302379 320705 332970 346087 360213 366267 377366 384846 388465 415030 431970 466158 494410 503965 514590 543851 566049 600355 604758 610445 622545 641410 692174 705551 720426 732534 741615 776930 840497 854623 943415 962115 1007930 1038261 1087702 1132098 1165395 1200710 1220890 1245090 1320781 1411102 1483230 1511895 1631553 1680994 1709246 1730435 1801065 1831335 1886830 1924230 2075513 2076522 2116653 2330790 2521491 2563869 2641562 2719255 2830245 3023790 3263106 3460870 3527755 3602130 3662670 3806957 3962343 4151026 4202485 4233306 4273115 5042982 5127738 5191305 5438510 5660490 5883479 5982361 6226539 6603905 7055510 7613914 7924686 8157765 8404970 8546230 9245467 10377565 10382610 10583265 11420871 11766958 11964722 12453078 12607455 12819345 13207810 14528591 16315530 17650437 17947083 18490934 19034785 19811715 20755130 21166530 22841742 25214910 25638690 27736401 29057182 29417395 29911805 31132695 35300874 35894166 38069570 39623430 41876527 43585773 46227335 55472802 57104355 58834790 59823610 62265390 64718269 72642955 83753054 87171546 88252185 89735415 92454670 101700137 114208710 125629581 129436538 138682005 145285910 176504370 179470830 194154807 203400274 209382635 217928865 251259162 277364010 305100411 323591345 388309614 418765270 435857730 508500685 610200822 628147905 647182690 711900959 970774035 1017001370 1256295810 1423801918 1525502055 1941548070 2135702877 3051004110 3559504795 4271405754 7119009590 10678514385 21357028770
- Sum of all divisors σ(n): 69636672000
- Sum of proper divisors (its aliquot sum) s(n): 48279643230
- 21357028770 is an abundant number, because the sum of its proper divisors (48279643230) is greater than itself. Its abundance is 26922614460
Bases of 21357028770
- Binary: 100111110001111101001100101101000102
- Hexadecimal: 0x4F8FA65A2
- Base-36: 9T7F8V6
Squares and roots of 21357028770
- 21357028770 squared (213570287702) is 456122677882607712900
- 21357028770 cubed (213570287703) is 9741425154188295607029200133000
-
The
square root of 21357028770 is 146140.4419385681 -
The
cube root of 21357028770 is 2774.4715610923
Scales and comparisons
How big is 21357028770?- 21,357,028,770 seconds is equal to 679 years, 4 weeks, 3 days, 19 hours, 59 minutes, 30 seconds.
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To count from 1 to 21,357,028,770 would take you about one thousand, three hundred fifty-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 21357028770 cubic inches would be around 231.2 feet tall.
Recreational maths with 21357028770
- 21357028770 backwards is 07782075312
- 21357028770 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21357028770's digits is 42
- More coming soon!
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