18138777930
18,138,777,930 is an even composite number composed of seven prime numbers multiplied together.
18138777930 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 18138777930:
2 × 34 × 5 × 7 × 13 × 73 × 3371
(2 × 3 × 3 × 3 × 3 × 5 × 7 × 13 × 73 × 3371)See below for interesting mathematical facts about the number 18138777930 from the Numbermatics database.
Names of 18138777930
- Cardinal: 18138777930 can be written as Eighteen billion, one hundred thirty-eight million, seven hundred seventy-seven thousand, nine hundred thirty.
Scientific notation
- Scientific notation: 1.813877793 × 1010
Factors of 18138777930
Divisors of 18138777930
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 5 6 7 9 10 13 14 15 18 21 26 27 30 35 39 42 45 54 63 65 70 73 78 81 90 91 105 117 126 130 135 146 162 182 189 195 210 219 234 270 273 315 351 365 378 390 405 438 455 511 546 567 585 630 657 702 730 810 819 910 945 949 1022 1053 1095 1134 1170 1314 1365 1533 1638 1755 1890 1898 1971 2106 2190 2457 2555 2730 2835 2847 3066 3285 3371 3510 3942 4095 4599 4745 4914 5110 5265 5670 5694 5913 6570 6643 6742 7371 7665 8190 8541 9198 9490 9855 10113 10530 11826 12285 13286 13797 14235 14742 15330 16855 17082 19710 19929 20226 22995 23597 24570 25623 27594 28470 29565 30339 33215 33710 36855 39858 41391 42705 43823 45990 47194 50565 51246 59130 59787 60678 66430 68985 70791 73710 76869 82782 85410 87646 91017 99645 101130 117985 119574 128115 131469 137970 141582 151695 153738 179361 182034 199290 206955 212373 219115 235970 246083 256230 262938 273051 298935 303390 306761 353955 358722 384345 394407 413910 424746 438230 455085 492166 538083 546102 597870 613522 637119 657345 707910 738249 768690 788814 896805 910170 920283 1061865 1076166 1183221 1230415 1274238 1314690 1365255 1476498 1533805 1722581 1793610 1840566 1911357 1972035 2123730 2214747 2366442 2460830 2690415 2730510 2760849 3067610 3185595 3199079 3445162 3549663 3691245 3822714 3944070 4429494 4601415 5167743 5380830 5521698 5916105 6371190 6398158 6644241 7099326 7382490 8282547 8612905 9202830 9556785 9597237 10335486 11073735 11832210 13288482 13804245 15503229 15995395 16565094 17225810 17748315 19113570 19194474 19932723 22147470 22393553 24847641 25838715 27608490 28791711 31006458 31990790 33221205 35496630 39865446 41412735 44787106 46509687 47986185 49695282 51677430 57583422 66442410 67180659 77516145 82825470 86375133 93019374 95972370 99663615 111967765 124238205 134361318 139529061 143958555 155032290 172750266 199327230 201541977 223935530 232548435 248476410 259125399 279058122 287917110 335903295 403083954 431875665 465096870 518250798 604625931 671806590 697645305 863751330 1007709885 1209251862 1295626995 1395290610 1813877793 2015419770 2591253990 3023129655 3627755586 6046259310 9069388965 18138777930
- Sum of all divisors σ(n): 60868862208
- Sum of proper divisors (its aliquot sum) s(n): 42730084278
- 18138777930 is an abundant number, because the sum of its proper divisors (42730084278) is greater than itself. Its abundance is 24591306348
Bases of 18138777930
- Binary: 100001110010010011111001001010010102
- Hexadecimal: 0x43927C94A
- Base-36: 8BZCYMI
Squares and roots of 18138777930
- 18138777930 squared (181387779302) is 329015264793855084900
- 18138777930 cubed (181387779303) is 5967934823675884613602396257000
-
The
square root of 18138777930 is 134680.2804051135 -
The
cube root of 18138777930 is 2627.4593636729
Scales and comparisons
How big is 18138777930?- 18,138,777,930 seconds is equal to 576 years, 39 weeks, 2 days, 13 hours, 25 minutes, 30 seconds.
-
To count from 1 to 18,138,777,930 would take you about one thousand, one hundred fifty-three 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 18138777930 cubic inches would be around 219 feet tall.
Recreational maths with 18138777930
- 18138777930 backwards is 03977783181
- 18138777930 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18138777930's digits is 54
- More coming soon!
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