1389936640
1,389,936,640 is an even composite number composed of four prime numbers multiplied together.
1389936640 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 1389936640:
214 × 5 × 192 × 47
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 19 × 47)See below for interesting mathematical facts about the number 1389936640 from the Numbermatics database.
Names of 1389936640
- Cardinal: 1389936640 can be written as One billion, three hundred eighty-nine million, nine hundred thirty-six thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.38993664 × 109
Factors of 1389936640
Divisors of 1389936640
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 47 64 76 80 94 95 128 152 160 188 190 235 256 304 320 361 376 380 470 512 608 640 722 752 760 893 940 1024 1216 1280 1444 1504 1520 1786 1805 1880 2048 2432 2560 2888 3008 3040 3572 3610 3760 4096 4465 4864 5120 5776 6016 6080 7144 7220 7520 8192 8930 9728 10240 11552 12032 12160 14288 14440 15040 16384 16967 17860 19456 20480 23104 24064 24320 28576 28880 30080 33934 35720 38912 40960 46208 48128 48640 57152 57760 60160 67868 71440 77824 81920 84835 92416 96256 97280 114304 115520 120320 135736 142880 155648 169670 184832 192512 194560 228608 231040 240640 271472 285760 311296 339340 369664 385024 389120 457216 462080 481280 542944 571520 678680 739328 770048 778240 914432 924160 962560 1085888 1143040 1357360 1478656 1556480 1828864 1848320 1925120 2171776 2286080 2714720 2957312 3657728 3696640 3850240 4343552 4572160 5429440 5914624 7315456 7393280 8687104 9144320 10858880 14630912 14786560 17374208 18288640 21717760 29573120 34748416 36577280 43435520 69496832 73154560 86871040 138993664 173742080 277987328 347484160 694968320 1389936640
- Sum of all divisors σ(n): 3595457376
- Sum of proper divisors (its aliquot sum) s(n): 2205520736
- 1389936640 is an abundant number, because the sum of its proper divisors (2205520736) is greater than itself. Its abundance is 815584096
Bases of 1389936640
- Binary: 10100101101100011000000000000002
- Hexadecimal: 0x52D8C000
- Base-36: MZJ5Z4
Squares and roots of 1389936640
- 1389936640 squared (13899366402) is 1931923863214489600
- 1389936640 cubed (13899366403) is 2685251763172167273938944000
-
The
square root of 1389936640 is 37281.8540311503 -
The
cube root of 1389936640 is 1116.0020725971
Scales and comparisons
How big is 1389936640?- 1,389,936,640 seconds is equal to 44 years, 10 weeks, 1 day, 5 hours, 30 minutes, 40 seconds.
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To count from 1 to 1,389,936,640 would take you about eighty-eight 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 1389936640 cubic inches would be around 93 feet tall.
Recreational maths with 1389936640
- 1389936640 backwards is 0466399831
- The number of decimal digits it has is: 10
- The sum of 1389936640's digits is 49
- More coming soon!
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