221421690
221,421,690 is an even composite number composed of seven prime numbers multiplied together.
221421690 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 221421690:
2 × 32 × 5 × 72 × 23 × 37 × 59
(2 × 3 × 3 × 5 × 7 × 7 × 23 × 37 × 59)See below for interesting mathematical facts about the number 221421690 from the Numbermatics database.
Names of 221421690
- Cardinal: 221421690 can be written as Two hundred twenty-one million, four hundred twenty-one thousand, six hundred ninety.
Scientific notation
- Scientific notation: 2.2142169 × 108
Factors of 221421690
Divisors of 221421690
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 23 30 35 37 42 45 46 49 59 63 69 70 74 90 98 105 111 115 118 126 138 147 161 177 185 207 210 222 230 245 259 294 295 315 322 333 345 354 370 413 414 441 483 490 518 531 555 590 630 666 690 735 777 805 826 851 882 885 966 1035 1062 1110 1127 1239 1295 1357 1449 1470 1554 1610 1665 1702 1770 1813 2065 2070 2183 2205 2254 2331 2415 2478 2553 2590 2655 2714 2891 2898 3330 3381 3626 3717 3885 4071 4130 4255 4366 4410 4662 4830 5106 5310 5439 5635 5782 5957 6195 6549 6762 6785 7245 7434 7659 7770 8142 8510 8673 9065 9499 10143 10878 10915 11270 11655 11914 12213 12390 12765 13098 13570 14455 14490 15281 15318 16317 16905 17346 17871 18130 18585 18998 19647 20286 20355 21830 23310 24426 25530 26019 27195 28497 28910 29785 30562 32634 32745 33810 35742 37170 38295 39294 40710 41699 43365 45843 47495 50209 50715 52038 53613 54390 56994 59570 61065 65490 66493 76405 76590 81585 83398 85491 86730 89355 91686 94990 98235 100418 101430 106967 107226 122130 125097 130095 132986 137529 142485 150627 152810 163170 170982 178710 196470 199479 208495 213934 229215 250194 251045 260190 268065 275058 284970 301254 320901 332465 351463 375291 398958 416990 427455 451881 458430 502090 534835 536130 598437 625485 641802 664930 687645 702926 750582 753135 854910 903762 962703 997395 1054389 1069670 1196874 1250970 1375290 1506270 1604505 1757315 1876455 1925406 1994790 2108778 2259405 2460241 2992185 3163167 3209010 3514630 3752910 4518810 4813515 4920482 5271945 5984370 6326334 7380723 9627030 10543890 12301205 14761446 15815835 22142169 24602410 31631670 36903615 44284338 73807230 110710845 221421690
- Sum of all divisors σ(n): 729855360
- Sum of proper divisors (its aliquot sum) s(n): 508433670
- 221421690 is an abundant number, because the sum of its proper divisors (508433670) is greater than itself. Its abundance is 287011980
Bases of 221421690
- Binary: 11010011001010100000011110102
- Hexadecimal: 0xD32A07A
- Base-36: 3NTU2I
Squares and roots of 221421690
- 221421690 squared (2214216902) is 49027564802456100
- 221421690 cubed (2214216903) is 10855766255144345812809000
-
The
square root of 221421690 is 14880.2449576611 -
The
cube root of 221421690 is 604.9786573533
Scales and comparisons
How big is 221421690?- 221,421,690 seconds is equal to 7 years, 2 weeks, 18 hours, 1 minute, 30 seconds.
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To count from 1 to 221,421,690 would take you about ten 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 221421690 cubic inches would be around 50.4 feet tall.
Recreational maths with 221421690
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