1998791340
1,998,791,340 is an even composite number composed of seven prime numbers multiplied together.
1998791340 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 1998791340:
22 × 3 × 5 × 73 × 13 × 31 × 241
(2 × 2 × 3 × 5 × 7 × 7 × 7 × 13 × 31 × 241)See below for interesting mathematical facts about the number 1998791340 from the Numbermatics database.
Names of 1998791340
- Cardinal: 1998791340 can be written as One billion, nine hundred ninety-eight million, seven hundred ninety-one thousand, three hundred forty.
Scientific notation
- Scientific notation: 1.99879134 × 109
Factors of 1998791340
Divisors of 1998791340
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 31 35 39 42 49 52 60 62 65 70 78 84 91 93 98 105 124 130 140 147 155 156 182 186 195 196 210 217 241 245 260 273 294 310 343 364 372 390 403 420 434 455 465 482 490 546 588 620 637 651 686 723 735 780 806 868 910 930 964 980 1029 1085 1092 1205 1209 1274 1302 1365 1372 1446 1470 1519 1612 1687 1715 1820 1860 1911 2015 2058 2170 2410 2418 2548 2604 2730 2821 2892 2940 3038 3133 3185 3255 3374 3430 3615 3822 4030 4116 4340 4459 4557 4820 4836 5061 5145 5460 5642 6045 6076 6266 6370 6510 6748 6860 7230 7471 7595 7644 8060 8435 8463 8918 9114 9399 9555 10122 10290 10633 11284 11809 12090 12532 12740 13020 13377 14105 14460 14942 15190 15665 16870 16926 17836 18228 18798 19110 19747 20244 20580 21266 21931 22295 22413 22785 23618 24180 25305 26754 28210 29884 30380 31330 31899 33740 33852 35427 37355 37596 38220 39494 42315 42532 43862 44590 44826 45570 46995 47236 50610 52297 53165 53508 56420 59045 59241 62660 63798 65793 66885 70854 74710 78988 82663 84630 87724 89180 89652 91140 93990 97123 98735 101220 104594 106330 109655 112065 118090 118482 127596 131586 133770 138229 141708 149420 153517 156891 159495 165326 169260 177135 187980 194246 197470 209188 212660 219310 224130 236180 236964 247989 261485 263172 267540 276458 291369 296205 307034 313782 318990 328965 330652 354270 366079 388492 394940 413315 414687 438620 448260 460551 485615 495978 522970 552916 582738 592410 614068 627564 637980 657930 679861 691145 708540 732158 767585 784455 826630 829374 921102 971230 991956 1045940 1074619 1098237 1165476 1184820 1239945 1315860 1359722 1382290 1456845 1464316 1535170 1568910 1653260 1658748 1830395 1842204 1942460 2039583 2073435 2149238 2196474 2302755 2479890 2562553 2719444 2764580 2913690 3070340 3137820 3223857 3399305 3660790 4079166 4146870 4298476 4392948 4605510 4759027 4959780 5125106 5373095 5491185 5827380 6447714 6798610 7321580 7687659 8158332 8293740 9211020 9518054 10197915 10250212 10746190 10982370 12812765 12895428 13597220 14277081 15375318 16119285 19036108 20395830 21492380 21964740 23795135 25625530 28554162 30750636 32238570 33313189 38438295 40791660 47590270 51251060 57108324 64477140 66626378 71385405 76876590 95180540 99939567 133252756 142770810 153753180 166565945 199879134 285541620 333131890 399758268 499697835 666263780 999395670 1998791340
- Sum of all divisors σ(n): 7285555200
- Sum of proper divisors (its aliquot sum) s(n): 5286763860
- 1998791340 is an abundant number, because the sum of its proper divisors (5286763860) is greater than itself. Its abundance is 3287972520
Bases of 1998791340
- Binary: 11101110010001100100010101011002
- Hexadecimal: 0x772322AC
- Base-36: X2119O
Squares and roots of 1998791340
- 1998791340 squared (19987913402) is 3995166820858995600
- 1998791340 cubed (19987913403) is 7985504843388291766378104000
-
The
square root of 1998791340 is 44707.8442781577 -
The
cube root of 1998791340 is 1259.6671960549
Scales and comparisons
How big is 1998791340?- 1,998,791,340 seconds is equal to 63 years, 28 weeks, 6 days, 3 hours, 49 minutes.
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To count from 1 to 1,998,791,340 would take you about one hundred twenty-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 1998791340 cubic inches would be around 105 feet tall.
Recreational maths with 1998791340
- 1998791340 backwards is 0431978991
- The number of decimal digits it has is: 10
- The sum of 1998791340's digits is 51
- More coming soon!
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