18989477388
18,989,477,388 is an even composite number composed of seven prime numbers multiplied together.
18989477388 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 18989477388:
22 × 32 × 7 × 61 × 71 × 127 × 137
(2 × 2 × 3 × 3 × 7 × 61 × 71 × 127 × 137)See below for interesting mathematical facts about the number 18989477388 from the Numbermatics database.
Names of 18989477388
- Cardinal: 18989477388 can be written as Eighteen billion, nine hundred eighty-nine million, four hundred seventy-seven thousand, three hundred eighty-eight.
Scientific notation
- Scientific notation: 1.8989477388 × 1010
Factors of 18989477388
Divisors of 18989477388
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 61 63 71 84 122 126 127 137 142 183 213 244 252 254 274 284 366 381 411 426 427 497 508 548 549 639 732 762 822 852 854 889 959 994 1098 1143 1233 1278 1281 1491 1524 1644 1708 1778 1918 1988 2196 2286 2466 2556 2562 2667 2877 2982 3556 3836 3843 4331 4473 4572 4932 5124 5334 5754 5964 7686 7747 8001 8357 8631 8662 8946 9017 9727 10668 11508 12993 15372 15494 16002 16714 17262 17324 17399 17892 18034 19454 23241 25071 25986 27051 29181 30317 30988 32004 33428 34524 34798 36068 38908 38979 46482 50142 51972 52197 54102 54229 58362 58499 60634 63119 68089 69596 69723 75213 77958 81153 87543 90951 92964 100284 104394 108204 108458 116724 116998 121268 121793 126238 136178 139446 150426 155916 156591 162306 162687 175086 175497 181902 189357 204267 208788 216916 233996 243586 252476 272356 272853 278892 300852 313182 324612 325374 350172 350994 363804 365379 378714 408534 487172 488061 526491 545706 550037 568071 593347 612801 626364 650748 701988 730758 757428 817068 976122 1052982 1061339 1091412 1096137 1100074 1136142 1186694 1225602 1235329 1461516 1650111 1780041 1952244 2105964 2122678 2192274 2200148 2272284 2373388 2451204 2470658 3184017 3300222 3560082 3705987 3850259 4153429 4245356 4384548 4941316 4950333 5340123 6368034 6600444 7120164 7411974 7429373 7700518 8306858 8647303 9552051 9900666 10680246 11117961 11550777 12460287 12736068 14823948 14858746 15401036 16613716 17294606 19104102 19801332 21360492 22235922 22288119 23101554 24920574 25941909 29717492 34589212 34652331 37380861 38208204 44471844 44576238 46203108 49841148 51883818 66864357 69304662 74761722 75355069 77825727 89152476 103767636 133728714 138609324 149523444 150710138 155651454 226065207 267457428 301420276 311302908 452130414 527485483 678195621 904260828 1054970966 1356391242 1582456449 2109941932 2712782484 3164912898 4747369347 6329825796 9494738694 18989477388
- Sum of all divisors σ(n): 57404325888
- Sum of proper divisors (its aliquot sum) s(n): 38414848500
- 18989477388 is an abundant number, because the sum of its proper divisors (38414848500) is greater than itself. Its abundance is 19425371112
Bases of 18989477388
- Binary: 100011010111101110001101110000011002
- Hexadecimal: 0x46BDC6E0C
- Base-36: 8Q1UEJ0
Squares and roots of 18989477388
- 18989477388 squared (189894773882) is 360600251469363302544
- 18989477388 cubed (189894773883) is 6847610321384588208416290875072
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The
square root of 18989477388 is 137802.3127091849 -
The
cube root of 18989477388 is 2667.9089515235
Scales and comparisons
How big is 18989477388?- 18,989,477,388 seconds is equal to 603 years, 41 weeks, 6 days, 14 hours, 49 minutes, 48 seconds.
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To count from 1 to 18,989,477,388 would take you about one thousand, two hundred seven 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 18989477388 cubic inches would be around 222.3 feet tall.
Recreational maths with 18989477388
- 18989477388 backwards is 88377498981
- The number of decimal digits it has is: 11
- The sum of 18989477388's digits is 72
- More coming soon!
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The information we have on file for 18989477388 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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