1216400940
1,216,400,940 is an even composite number composed of six prime numbers multiplied together.
1216400940 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 1216400940:
22 × 32 × 5 × 29 × 31 × 7517
(2 × 2 × 3 × 3 × 5 × 29 × 31 × 7517)See below for interesting mathematical facts about the number 1216400940 from the Numbermatics database.
Names of 1216400940
- Cardinal: 1216400940 can be written as One billion, two hundred sixteen million, four hundred thousand, nine hundred forty.
Scientific notation
- Scientific notation: 1.21640094 × 109
Factors of 1216400940
Divisors of 1216400940
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 29 30 31 36 45 58 60 62 87 90 93 116 124 145 155 174 180 186 261 279 290 310 348 372 435 465 522 558 580 620 870 899 930 1044 1116 1305 1395 1740 1798 1860 2610 2697 2790 3596 4495 5220 5394 5580 7517 8091 8990 10788 13485 15034 16182 17980 22551 26970 30068 32364 37585 40455 45102 53940 67653 75170 80910 90204 112755 135306 150340 161820 217993 225510 233027 270612 338265 435986 451020 466054 653979 676530 699081 871972 932108 1089965 1165135 1307958 1353060 1398162 1961937 2097243 2179930 2330270 2615916 2796324 3269895 3495405 3923874 4194486 4359860 4660540 6539790 6757783 6990810 7847748 8388972 9809685 10486215 13079580 13515566 13981620 19619370 20273349 20972430 27031132 33788915 39238740 40546698 41944860 60820047 67577830 81093396 101366745 121640094 135155660 202733490 243280188 304100235 405466980 608200470 1216400940
- Sum of all divisors σ(n): 3940634880
- Sum of proper divisors (its aliquot sum) s(n): 2724233940
- 1216400940 is an abundant number, because the sum of its proper divisors (2724233940) is greater than itself. Its abundance is 1507833000
Bases of 1216400940
- Binary: 10010001000000011001110001011002
- Hexadecimal: 0x4880CE2C
- Base-36: K47OZ0
Squares and roots of 1216400940
- 1216400940 squared (12164009402) is 1479631246832883600
- 1216400940 cubed (12164009403) is 1799824839500891633950584000
-
The
square root of 1216400940 is 34876.9399460445 -
The
cube root of 1216400940 is 1067.4779567907
Scales and comparisons
How big is 1216400940?- 1,216,400,940 seconds is equal to 38 years, 35 weeks, 1 day, 17 hours, 9 minutes.
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To count from 1 to 1,216,400,940 would take you about seventy-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 1216400940 cubic inches would be around 89 feet tall.
Recreational maths with 1216400940
- 1216400940 backwards is 0490046121
- The number of decimal digits it has is: 10
- The sum of 1216400940's digits is 27
- More coming soon!
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