12491377920
12,491,377,920 is an even composite number composed of five prime numbers multiplied together.
12491377920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 12491377920:
28 × 32 × 5 × 72 × 22129
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 7 × 22129)See below for interesting mathematical facts about the number 12491377920 from the Numbermatics database.
Names of 12491377920
- Cardinal: 12491377920 can be written as Twelve billion, four hundred ninety-one million, three hundred seventy-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.249137792 × 1010
Factors of 12491377920
Divisors of 12491377920
- Number of divisors d(n): 324
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 49 56 60 63 64 70 72 80 84 90 96 98 105 112 120 126 128 140 144 147 160 168 180 192 196 210 224 240 245 252 256 280 288 294 315 320 336 360 384 392 420 441 448 480 490 504 560 576 588 630 640 672 720 735 768 784 840 882 896 960 980 1008 1120 1152 1176 1260 1280 1344 1440 1470 1568 1680 1764 1792 1920 1960 2016 2205 2240 2304 2352 2520 2688 2880 2940 3136 3360 3528 3840 3920 4032 4410 4480 4704 5040 5376 5760 5880 6272 6720 7056 7840 8064 8820 8960 9408 10080 11520 11760 12544 13440 14112 15680 16128 17640 18816 20160 22129 23520 26880 28224 31360 35280 37632 40320 44258 47040 56448 62720 66387 70560 80640 88516 94080 110645 112896 132774 141120 154903 177032 188160 199161 221290 265548 282240 309806 331935 354064 398322 442580 464709 531096 564480 619612 663870 708128 774515 796644 885160 929418 995805 1062192 1084321 1239224 1327740 1394127 1416256 1549030 1593288 1770320 1858836 1991610 2124384 2168642 2323545 2478448 2655480 2788254 2832512 3098060 3186576 3252963 3540640 3717672 3983220 4248768 4337284 4647090 4956896 5310960 5421605 5576508 5665024 6196120 6373152 6505926 6970635 7081280 7435344 7966440 8497536 8674568 9294180 9758889 9913792 10621920 10843210 11153016 12392240 12746304 13011852 13941270 14162560 14870688 15932880 16264815 16995072 17349136 18588360 19517778 19827584 21243840 21686420 22306032 24784480 25492608 26023704 27882540 28325120 29741376 31865760 32529630 34698272 37176720 39035556 39655168 42487680 43372840 44612064 48794445 49568960 50985216 52047408 55765080 59482752 63731520 65059260 69396544 74353440 78071112 84975360 86745680 89224128 97588890 99137920 104094816 111530160 118965504 127463040 130118520 138793088 148706880 156142224 173491360 178448256 195177780 198275840 208189632 223060320 254926080 260237040 277586176 297413760 312284448 346982720 356896512 390355560 416379264 446120640 520474080 594827520 624568896 693965440 780711120 832758528 892241280 1040948160 1249137792 1387930880 1561422240 1784482560 2081896320 2498275584 3122844480 4163792640 6245688960 12491377920
- Sum of all divisors σ(n): 50277279780
- Sum of proper divisors (its aliquot sum) s(n): 37785901860
- 12491377920 is an abundant number, because the sum of its proper divisors (37785901860) is greater than itself. Its abundance is 25294523940
Bases of 12491377920
- Binary: 10111010001000101101001101000000002
- Hexadecimal: 0x2E88B4D00
- Base-36: 5QL1KW0
Squares and roots of 12491377920
- 12491377920 squared (124913779202) is 156034522340263526400
- 12491377920 cubed (124913779203) is 1949086187118914540654297088000
-
The
square root of 12491377920 is 111764.8331095251 -
The
cube root of 12491377920 is 2320.2606920691
Scales and comparisons
How big is 12491377920?- 12,491,377,920 seconds is equal to 397 years, 9 weeks, 5 days, 3 hours, 12 minutes.
-
To count from 1 to 12,491,377,920 would take you about seven hundred ninety-four 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 12491377920 cubic inches would be around 193.4 feet tall.
Recreational maths with 12491377920
- 12491377920 backwards is 02977319421
- 12491377920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 12491377920's digits is 45
- More coming soon!
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