138669216
138,669,216 is an even composite number composed of five prime numbers multiplied together.
138669216 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138669216:
25 × 3 × 72 × 41 × 719
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 41 × 719)See below for interesting mathematical facts about the number 138669216 from the Numbermatics database.
Names of 138669216
- Cardinal: 138669216 can be written as One hundred thirty-eight million, six hundred sixty-nine thousand, two hundred sixteen.
Scientific notation
- Scientific notation: 1.38669216 × 108
Factors of 138669216
Divisors of 138669216
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 41 42 48 49 56 82 84 96 98 112 123 147 164 168 196 224 246 287 294 328 336 392 492 574 588 656 672 719 784 861 984 1148 1176 1312 1438 1568 1722 1968 2009 2157 2296 2352 2876 3444 3936 4018 4314 4592 4704 5033 5752 6027 6888 8036 8628 9184 10066 11504 12054 13776 15099 16072 17256 20132 23008 24108 27552 29479 30198 32144 34512 35231 40264 48216 58958 60396 64288 69024 70462 80528 88437 96432 105693 117916 120792 140924 161056 176874 192864 206353 211386 235832 241584 281848 353748 412706 422772 471664 483168 563696 619059 707496 825412 845544 943328 1127392 1238118 1414992 1444471 1650824 1691088 2476236 2829984 2888942 3301648 3382176 4333413 4952472 5777884 6603296 8666826 9904944 11555768 17333652 19809888 23111536 34667304 46223072 69334608 138669216
- Sum of all divisors σ(n): 434367360
- Sum of proper divisors (its aliquot sum) s(n): 295698144
- 138669216 is an abundant number, because the sum of its proper divisors (295698144) is greater than itself. Its abundance is 157028928
Bases of 138669216
- Binary: 10000100001111101100101000002
- Hexadecimal: 0x843ECA0
- Base-36: 2AK5UO
Squares and roots of 138669216
- 138669216 squared (1386692162) is 19229151466054656
- 138669216 cubed (1386692163) is 2666491358143049760669696
-
The
square root of 138669216 is 11775.7894002907 -
The
cube root of 138669216 is 517.5989103571
Scales and comparisons
How big is 138669216?- 138,669,216 seconds is equal to 4 years, 21 weeks, 1 day, 23 hours, 13 minutes, 36 seconds.
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To count from 1 to 138,669,216 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 138669216 cubic inches would be around 43.1 feet tall.
Recreational maths with 138669216
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