12138587640
12,138,587,640 is an even composite number composed of six prime numbers multiplied together.
12138587640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 12138587640:
23 × 33 × 5 × 23 × 61 × 8011
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 23 × 61 × 8011)See below for interesting mathematical facts about the number 12138587640 from the Numbermatics database.
Names of 12138587640
- Cardinal: 12138587640 can be written as Twelve billion, one hundred thirty-eight million, five hundred eighty-seven thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.213858764 × 1010
Factors of 12138587640
Divisors of 12138587640
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 27 30 36 40 45 46 54 60 61 69 72 90 92 108 115 120 122 135 138 180 183 184 207 216 230 244 270 276 305 345 360 366 414 460 488 540 549 552 610 621 690 732 828 915 920 1035 1080 1098 1220 1242 1380 1403 1464 1647 1656 1830 2070 2196 2440 2484 2745 2760 2806 3105 3294 3660 4140 4209 4392 4968 5490 5612 6210 6588 7015 7320 8011 8235 8280 8418 10980 11224 12420 12627 13176 14030 16022 16470 16836 21045 21960 24033 24840 25254 28060 32044 32940 33672 37881 40055 42090 48066 50508 56120 63135 64088 65880 72099 75762 80110 84180 96132 101016 120165 126270 144198 151524 160220 168360 184253 189405 192264 216297 240330 252540 288396 303048 320440 360495 368506 378810 432594 480660 488671 505080 552759 576792 720990 737012 757620 865188 921265 961320 977342 1081485 1105518 1441980 1466013 1474024 1515240 1658277 1730376 1842530 1954684 2162970 2211036 2443355 2763795 2883960 2932026 3316554 3685060 3909368 4325940 4398039 4422072 4886710 4974831 5527590 5864052 6633108 7330065 7370120 8291385 8651880 8796078 9773420 9949662 11055180 11239433 11728104 13194117 13266216 14660130 16582770 17592156 19546840 19899324 21990195 22110360 22478866 24874155 26388234 29320260 33165540 33718299 35184312 39798648 43980390 44957732 49748310 52776468 56197165 58640520 65970585 66331080 67436598 87960780 89915464 99496620 101154897 105552936 112394330 131941170 134873196 168591495 175921560 198993240 202309794 224788660 263882340 269746392 303464691 337182990 404619588 449577320 505774485 527764680 606929382 674365980 809239176 1011548970 1213858764 1348731960 1517323455 2023097940 2427717528 3034646910 4046195880 6069293820 12138587640
- Sum of all divisors σ(n): 42918681600
- Sum of proper divisors (its aliquot sum) s(n): 30780093960
- 12138587640 is an abundant number, because the sum of its proper divisors (30780093960) is greater than itself. Its abundance is 18641506320
Bases of 12138587640
- Binary: 10110100111000010000100101111110002
- Hexadecimal: 0x2D38425F8
- Base-36: 5KR0260
Squares and roots of 12138587640
- 12138587640 squared (121385876402) is 147345309893960769600
- 12138587640 cubed (121385876403) is 1788563957490801908511447744000
-
The
square root of 12138587640 is 110175.2587471435 -
The
cube root of 12138587640 is 2298.2082857653
Scales and comparisons
How big is 12138587640?- 12,138,587,640 seconds is equal to 385 years, 50 weeks, 2 days, 21 hours, 54 minutes.
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To count from 1 to 12,138,587,640 would take you about seven hundred seventy-one 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 12138587640 cubic inches would be around 191.5 feet tall.
Recreational maths with 12138587640
- 12138587640 backwards is 04678583121
- 12138587640 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 12138587640's digits is 45
- More coming soon!
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