12489720
12,489,720 is an even composite number composed of six prime numbers multiplied together.
12489720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 12489720:
23 × 3 × 5 × 29 × 37 × 97
(2 × 2 × 2 × 3 × 5 × 29 × 37 × 97)See below for interesting mathematical facts about the number 12489720 from the Numbermatics database.
Names of 12489720
- Cardinal: 12489720 can be written as Twelve million, four hundred eighty-nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.248972 × 107
Factors of 12489720
Divisors of 12489720
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 29 30 37 40 58 60 74 87 97 111 116 120 145 148 174 185 194 222 232 290 291 296 348 370 388 435 444 485 555 580 582 696 740 776 870 888 970 1073 1110 1160 1164 1455 1480 1740 1940 2146 2220 2328 2813 2910 3219 3480 3589 3880 4292 4440 5365 5626 5820 6438 7178 8439 8584 10730 10767 11252 11640 12876 14065 14356 16095 16878 17945 21460 21534 22504 25752 28130 28712 32190 33756 35890 42195 42920 43068 53835 56260 64380 67512 71780 84390 86136 104081 107670 112520 128760 143560 168780 208162 215340 312243 337560 416324 430680 520405 624486 832648 1040810 1248972 1561215 2081620 2497944 3122430 4163240 6244860 12489720
- Sum of all divisors σ(n): 40219200
- Sum of proper divisors (its aliquot sum) s(n): 27729480
- 12489720 is an abundant number, because the sum of its proper divisors (27729480) is greater than itself. Its abundance is 15239760
Bases of 12489720
- Binary: 1011111010010011111110002
- Hexadecimal: 0xBE93F8
- Base-36: 7FP4O
Squares and roots of 12489720
- 12489720 squared (124897202) is 155993105678400
- 12489720 cubed (124897203) is 1948310211853626048000
-
The
square root of 12489720 is 3534.0797953639 -
The
cube root of 12489720 is 232.0158035211
Scales and comparisons
How big is 12489720?- 12,489,720 seconds is equal to 20 weeks, 4 days, 13 hours, 22 minutes.
-
To count from 1 to 12,489,720 would take you about thirty weeks!
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 12489720 cubic inches would be around 19.3 feet tall.
Recreational maths with 12489720
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