138947400
138,947,400 is an even composite number composed of four prime numbers multiplied together.
138947400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 138947400:
23 × 36 × 52 × 953
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 953)See below for interesting mathematical facts about the number 138947400 from the Numbermatics database.
Names of 138947400
- Cardinal: 138947400 can be written as One hundred thirty-eight million, nine hundred forty-seven thousand, four hundred.
Scientific notation
- Scientific notation: 1.389474 × 108
Factors of 138947400
Divisors of 138947400
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 81 90 100 108 120 135 150 162 180 200 216 225 243 270 300 324 360 405 450 486 540 600 648 675 729 810 900 953 972 1080 1215 1350 1458 1620 1800 1906 1944 2025 2430 2700 2859 2916 3240 3645 3812 4050 4765 4860 5400 5718 5832 6075 7290 7624 8100 8577 9530 9720 11436 12150 14295 14580 16200 17154 18225 19060 22872 23825 24300 25731 28590 29160 34308 36450 38120 42885 47650 48600 51462 57180 68616 71475 72900 77193 85770 95300 102924 114360 128655 142950 145800 154386 171540 190600 205848 214425 231579 257310 285900 308772 343080 385965 428850 463158 514620 571800 617544 643275 694737 771930 857700 926316 1029240 1157895 1286550 1389474 1543860 1715400 1852632 1929825 2315790 2573100 2778948 3087720 3473685 3859650 4631580 5146200 5557896 5789475 6947370 7719300 9263160 11578950 13894740 15438600 17368425 23157900 27789480 34736850 46315800 69473700 138947400
- Sum of all divisors σ(n): 484865730
- Sum of proper divisors (its aliquot sum) s(n): 345918330
- 138947400 is an abundant number, because the sum of its proper divisors (345918330) is greater than itself. Its abundance is 206970930
Bases of 138947400
- Binary: 10000100100000101011010010002
- Hexadecimal: 0x8482B48
- Base-36: 2AQ4I0
Squares and roots of 138947400
- 138947400 squared (1389474002) is 19306379966760000
- 138947400 cubed (1389474003) is 2682571299793388424000000
-
The
square root of 138947400 is 11787.5951745893 -
The
cube root of 138947400 is 517.9447971663
Scales and comparisons
How big is 138947400?- 138,947,400 seconds is equal to 4 years, 21 weeks, 5 days, 4 hours, 30 minutes.
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To count from 1 to 138,947,400 would take you about six 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 138947400 cubic inches would be around 43.2 feet tall.
Recreational maths with 138947400
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