12289920
12,289,920 is an even composite number composed of five prime numbers multiplied together.
12289920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 12289920:
27 × 3 × 5 × 37 × 173
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 37 × 173)See below for interesting mathematical facts about the number 12289920 from the Numbermatics database.
Names of 12289920
- Cardinal: 12289920 can be written as Twelve million, two hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.228992 × 107
Factors of 12289920
Divisors of 12289920
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 64 74 80 96 111 120 128 148 160 173 185 192 222 240 296 320 346 370 384 444 480 519 555 592 640 692 740 865 888 960 1038 1110 1184 1384 1480 1730 1776 1920 2076 2220 2368 2595 2768 2960 3460 3552 4152 4440 4736 5190 5536 5920 6401 6920 7104 8304 8880 10380 11072 11840 12802 13840 14208 16608 17760 19203 20760 22144 23680 25604 27680 32005 33216 35520 38406 41520 51208 55360 64010 66432 71040 76812 83040 96015 102416 110720 128020 153624 166080 192030 204832 256040 307248 332160 384060 409664 512080 614496 768120 819328 1024160 1228992 1536240 2048320 2457984 3072480 4096640 6144960 12289920
- Sum of all divisors σ(n): 40465440
- Sum of proper divisors (its aliquot sum) s(n): 28175520
- 12289920 is an abundant number, because the sum of its proper divisors (28175520) is greater than itself. Its abundance is 15885600
Bases of 12289920
- Binary: 1011101110000111100000002
- Hexadecimal: 0xBB8780
- Base-36: 7BEYO
Squares and roots of 12289920
- 12289920 squared (122899202) is 151042133606400
- 12289920 cubed (122899203) is 1856295738651967488000
-
The
square root of 12289920 is 3505.6982186149 -
The
cube root of 12289920 is 230.7719493697
Scales and comparisons
How big is 12289920?- 12,289,920 seconds is equal to 20 weeks, 2 days, 5 hours, 52 minutes.
-
To count from 1 to 12,289,920 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 12289920 cubic inches would be around 19.2 feet tall.
Recreational maths with 12289920
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