12128506390
12,128,506,390 is an even composite number composed of seven prime numbers multiplied together.
12128506390 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 12128506390:
2 × 5 × 7 × 112 × 132 × 37 × 229
(2 × 5 × 7 × 11 × 11 × 13 × 13 × 37 × 229)See below for interesting mathematical facts about the number 12128506390 from the Numbermatics database.
Names of 12128506390
- Cardinal: 12128506390 can be written as Twelve billion, one hundred twenty-eight million, five hundred six thousand, three hundred ninety.
Scientific notation
- Scientific notation: 1.212850639 × 1010
Factors of 12128506390
Divisors of 12128506390
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 5 7 10 11 13 14 22 26 35 37 55 65 70 74 77 91 110 121 130 143 154 169 182 185 229 242 259 286 338 370 385 407 455 458 481 518 605 715 770 814 845 847 910 962 1001 1145 1183 1210 1295 1430 1573 1603 1690 1694 1859 2002 2035 2290 2366 2405 2519 2590 2849 2977 3146 3206 3367 3718 4070 4235 4477 4810 5005 5038 5291 5698 5915 5954 6253 6734 7865 8015 8470 8473 8954 9295 10010 10582 11011 11830 12506 12595 13013 14245 14885 15730 16030 16835 16946 17633 18590 20449 20839 22022 22385 25190 26026 26455 27709 28490 29770 31265 31339 32747 33670 35266 37037 38701 40898 41678 42365 43771 44770 52910 55055 55418 58201 59311 62530 62678 65065 65494 68783 74074 77402 84730 87542 88165 93203 102245 104195 110110 110149 116402 118622 130130 137566 138545 143143 156695 163735 176330 185185 186406 193505 193963 204490 208390 218855 220298 229229 270907 277090 286286 291005 296555 313390 327470 343915 360217 370370 387010 387926 407407 425711 437710 458458 466015 481481 541814 550745 582010 593110 652421 687830 715715 720434 756613 771043 814814 851422 932030 962962 969815 1025233 1101490 1146145 1211639 1304842 1354535 1431430 1431937 1513226 1542086 1801085 1939630 2037035 2050466 2128555 2292290 2407405 2423278 2521519 2709070 2863874 2979977 3262105 3602170 3783065 3855215 4074070 4257110 4682821 4814810 5043038 5126165 5296291 5959954 6058195 6524210 7159685 7176631 7566130 7710430 8481473 9365642 10023559 10252330 10592582 12116390 12607595 13328029 14319370 14353262 14899885 15751307 16962946 20047118 23414105 25215190 26481455 26656058 29799770 31502614 32779747 35883155 42407365 46828210 50117795 52962910 65559494 66640145 71766310 78756535 84814730 93296203 100235590 110259149 133280290 157513070 163898735 173264377 186592406 220518298 327797470 346528754 466481015 551295745 866321885 932962030 1102591490 1212850639 1732643770 2425701278 6064253195 12128506390
- Sum of all divisors σ(n): 30632091840
- Sum of proper divisors (its aliquot sum) s(n): 18503585450
- 12128506390 is an abundant number, because the sum of its proper divisors (18503585450) is greater than itself. Its abundance is 6375079060
Bases of 12128506390
- Binary: 10110100101110101001010010000101102
- Hexadecimal: 0x2D2EA5216
- Base-36: 5KKZZFA
Squares and roots of 12128506390
- 12128506390 squared (121285063902) is 147100667252270832100
- 12128506390 cubed (121285063903) is 1784111382742430529135467119000
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The
square root of 12128506390 is 110129.4982736233 -
The
cube root of 12128506390 is 2297.5718792373
Scales and comparisons
How big is 12128506390?- 12,128,506,390 seconds is equal to 385 years, 33 weeks, 5 days, 5 hours, 33 minutes, 10 seconds.
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To count from 1 to 12,128,506,390 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 12128506390 cubic inches would be around 191.5 feet tall.
Recreational maths with 12128506390
- 12128506390 backwards is 09360582121
- 12128506390 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 12128506390's digits is 37
- More coming soon!
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