18984349890
18,984,349,890 is an even composite number composed of seven prime numbers multiplied together.
18984349890 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 18984349890:
2 × 34 × 5 × 11 × 19 × 127 × 883
(2 × 3 × 3 × 3 × 3 × 5 × 11 × 19 × 127 × 883)See below for interesting mathematical facts about the number 18984349890 from the Numbermatics database.
Names of 18984349890
- Cardinal: 18984349890 can be written as Eighteen billion, nine hundred eighty-four million, three hundred forty-nine thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 1.898434989 × 1010
Factors of 18984349890
Divisors of 18984349890
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 19 22 27 30 33 38 45 54 55 57 66 81 90 95 99 110 114 127 135 162 165 171 190 198 209 254 270 285 297 330 342 381 405 418 495 513 570 594 627 635 762 810 855 883 891 990 1026 1045 1143 1254 1270 1397 1485 1539 1710 1766 1782 1881 1905 2090 2286 2413 2565 2649 2794 2970 3078 3135 3429 3762 3810 4191 4415 4455 4826 5130 5298 5643 5715 6270 6858 6985 7239 7695 7947 8382 8830 8910 9405 9713 10287 11286 11430 12065 12573 13245 13970 14478 15390 15894 16777 16929 17145 18810 19426 20574 20955 21717 23841 24130 25146 26490 26543 28215 29139 33554 33858 34290 36195 37719 39735 41910 43434 47682 48565 50331 51435 53086 56430 58278 62865 65151 71523 72390 75438 79470 79629 83885 84645 87417 97130 100662 102870 108585 112141 113157 119205 125730 130302 132715 143046 145695 150993 159258 167770 169290 174834 184547 188595 195453 217170 224282 226314 238410 238887 251655 262251 265430 291390 301986 325755 336423 357615 369094 377190 390906 398145 437085 452979 477774 503310 524502 553641 560705 565785 651510 672846 715230 716661 754965 786753 796290 874170 905958 922735 977265 1009269 1107282 1121410 1131570 1194435 1233551 1311255 1358937 1433322 1509930 1573506 1660923 1682115 1845470 1954530 2018538 2130679 2149983 2264895 2388870 2467102 2622510 2717874 2768205 3027807 3321846 3364230 3583305 3700653 3933765 4261358 4299966 4529790 4982769 5046345 5536410 6055614 6167755 6392037 6794685 7166610 7401306 7867530 8304615 9083421 9965538 10092690 10653395 10749915 11101959 12335510 12784074 13589370 14948307 15139035 16609230 18166842 18503265 19176111 21306790 21499830 22203918 23437469 24913845 29896614 30278070 31960185 33305877 37006530 38352222 45417105 46874938 49827690 55509795 57528333 63920370 66611754 70312407 74741535 90834210 95880555 99917631 111019590 115056666 117187345 140624814 149483070 166529385 172584999 191761110 199835262 210937221 234374690 287641665 333058770 345169998 351562035 421874442 499588155 575283330 632811663 703124070 862924995 999176310 1054686105 1265623326 1725849990 1898434989 2109372210 3164058315 3796869978 6328116630 9492174945 18984349890
- Sum of all divisors σ(n): 59146813440
- Sum of proper divisors (its aliquot sum) s(n): 40162463550
- 18984349890 is an abundant number, because the sum of its proper divisors (40162463550) is greater than itself. Its abundance is 21178113660
Bases of 18984349890
- Binary: 100011010111000111000110000110000102
- Hexadecimal: 0x46B8E30C2
- Base-36: 8PYSI4I
Squares and roots of 18984349890
- 18984349890 squared (189843498902) is 360405540745943012100
- 18984349890 cubed (189843498903) is 6842064887815633739706903669000
-
The
square root of 18984349890 is 137783.7069105053 -
The
cube root of 18984349890 is 2667.6688022209
Scales and comparisons
How big is 18984349890?- 18,984,349,890 seconds is equal to 603 years, 33 weeks, 3 days, 6 hours, 31 minutes, 30 seconds.
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To count from 1 to 18,984,349,890 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 18984349890 cubic inches would be around 222.3 feet tall.
Recreational maths with 18984349890
- 18984349890 backwards is 09894348981
- The number of decimal digits it has is: 11
- The sum of 18984349890's digits is 63
- More coming soon!
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