18413402721
18,413,402,721 is an odd composite number composed of seven prime numbers multiplied together.
18413402721 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 18413402721:
3 × 72 × 19 × 23 × 37 × 61 × 127
(3 × 7 × 7 × 19 × 23 × 37 × 61 × 127)See below for interesting mathematical facts about the number 18413402721 from the Numbermatics database.
Names of 18413402721
- Cardinal: 18413402721 can be written as Eighteen billion, four hundred thirteen million, four hundred two thousand, seven hundred twenty-one.
Scientific notation
- Scientific notation: 1.8413402721 × 1010
Factors of 18413402721
Divisors of 18413402721
- Number of divisors d(n): 192
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Complete list of divisors:
1 3 7 19 21 23 37 49 57 61 69 111 127 133 147 161 183 259 381 399 427 437 483 703 777 851 889 931 1127 1159 1281 1311 1403 1813 2109 2257 2413 2553 2667 2793 2921 2989 3059 3381 3477 4209 4699 4921 5439 5957 6223 6771 7239 7747 8113 8763 8967 9177 9821 14097 14763 15799 16169 16891 17871 18669 20447 21413 23241 24339 26657 29463 32893 34447 41699 42883 47397 48507 50673 51911 54229 55499 56791 61341 64239 68747 79971 89281 98679 103341 108077 110593 113183 118237 125097 128649 143129 147193 155733 162687 166497 170373 178181 186599 206241 230251 267843 286639 300181 324231 331779 339549 354711 363377 379603 388493 429387 441579 534543 559797 624967 690753 756539 792281 859917 900543 986309 1030351 1090131 1138809 1165479 1247267 1306193 1874901 2006473 2053463 2101267 2269617 2376843 2543639 2719451 2958927 3091053 3385439 3741801 3918579 4374769 5295773 5446141 6019419 6160389 6303801 6592697 6904163 7212457 7630917 8158353 8730869 10156317 13124307 14045311 14374241 15887319 16338423 19778091 20712489 21637371 23698073 26192607 38122987 42135933 43122723 46148879 48329141 71094219 100619687 114368961 125261243 138446637 144987423 165886511 266860909 301859061 323042153 375783729 497659533 800582727 876828701 969126459 2630486103 6137800907 18413402721
- Sum of all divisors σ(n): 33003601920
- Sum of proper divisors (its aliquot sum) s(n): 14590199199
- 18413402721 is a deficient number, because the sum of its proper divisors (14590199199) is less than itself. Its deficiency is 3823203522
Bases of 18413402721
- Binary: 100010010011000011000111010011000012
- Hexadecimal: 0x449863A61
- Base-36: 8GIV4GX
Squares and roots of 18413402721
- 18413402721 squared (184134027212) is 339053399765730203841
- 18413402721 cubed (184134027213) is 6243126793810597297957754051361
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The
square root of 18413402721 is 135695.9937544215 -
The
cube root of 18413402721 is 2640.6530906903
Scales and comparisons
How big is 18413402721?- 18,413,402,721 seconds is equal to 585 years, 25 weeks, 3 days, 2 hours, 5 minutes, 21 seconds.
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To count from 1 to 18,413,402,721 would take you about one thousand, one hundred seventy 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 18413402721 cubic inches would be around 220.1 feet tall.
Recreational maths with 18413402721
- 18413402721 backwards is 12720431481
- The number of decimal digits it has is: 11
- The sum of 18413402721's digits is 33
- More coming soon!
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