138540240
138,540,240 is an even composite number composed of five prime numbers multiplied together.
138540240 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 138540240:
24 × 33 × 5 × 31 × 2069
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 31 × 2069)See below for interesting mathematical facts about the number 138540240 from the Numbermatics database.
Names of 138540240
- Cardinal: 138540240 can be written as One hundred thirty-eight million, five hundred forty thousand, two hundred forty.
Scientific notation
- Scientific notation: 1.3854024 × 108
Factors of 138540240
Divisors of 138540240
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 36 40 45 48 54 60 62 72 80 90 93 108 120 124 135 144 155 180 186 216 240 248 270 279 310 360 372 432 465 496 540 558 620 720 744 837 930 1080 1116 1240 1395 1488 1674 1860 2069 2160 2232 2480 2790 3348 3720 4138 4185 4464 5580 6207 6696 7440 8276 8370 10345 11160 12414 13392 16552 16740 18621 20690 22320 24828 31035 33104 33480 37242 41380 49656 55863 62070 64139 66960 74484 82760 93105 99312 111726 124140 128278 148968 165520 186210 192417 223452 248280 256556 279315 297936 320695 372420 384834 446904 496560 513112 558630 577251 641390 744840 769668 893808 962085 1026224 1117260 1154502 1282780 1489680 1539336 1731753 1924170 2234520 2309004 2565560 2886255 3078672 3463506 3848340 4469040 4618008 5131120 5772510 6927012 7696680 8658765 9236016 11545020 13854024 15393360 17317530 23090040 27708048 34635060 46180080 69270120 138540240
- Sum of all divisors σ(n): 492825600
- Sum of proper divisors (its aliquot sum) s(n): 354285360
- 138540240 is an abundant number, because the sum of its proper divisors (354285360) is greater than itself. Its abundance is 215745120
Bases of 138540240
- Binary: 10000100000111110100110100002
- Hexadecimal: 0x841F4D0
- Base-36: 2AHEC0
Squares and roots of 138540240
- 138540240 squared (1385402402) is 19193398099257600
- 138540240 cubed (1385402403) is 2659057979086691725824000
-
The
square root of 138540240 is 11770.3118055555 -
The
cube root of 138540240 is 517.4383879599
Scales and comparisons
How big is 138540240?- 138,540,240 seconds is equal to 4 years, 21 weeks, 11 hours, 24 minutes.
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To count from 1 to 138,540,240 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 138540240 cubic inches would be around 43.1 feet tall.
Recreational maths with 138540240
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