123128320
123,128,320 is an even composite number composed of four prime numbers multiplied together.
123128320 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 123128320:
29 × 5 × 7 × 6871
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 6871)See below for interesting mathematical facts about the number 123128320 from the Numbermatics database.
Names of 123128320
- Cardinal: 123128320 can be written as One hundred twenty-three million, one hundred twenty-eight thousand, three hundred twenty.
Scientific notation
- Scientific notation: 1.2312832 × 108
Factors of 123128320
Divisors of 123128320
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 448 512 560 640 896 1120 1280 1792 2240 2560 3584 4480 6871 8960 13742 17920 27484 34355 48097 54968 68710 96194 109936 137420 192388 219872 240485 274840 384776 439744 480970 549680 769552 879488 961940 1099360 1539104 1758976 1923880 2198720 3078208 3517952 3847760 4397440 6156416 7695520 8794880 12312832 15391040 17589760 24625664 30782080 61564160 123128320
- Sum of all divisors σ(n): 337442688
- Sum of proper divisors (its aliquot sum) s(n): 214314368
- 123128320 is an abundant number, because the sum of its proper divisors (214314368) is greater than itself. Its abundance is 91186048
Bases of 123128320
- Binary: 1110101011011001010000000002
- Hexadecimal: 0x756CA00
- Base-36: 21B2F4
Squares and roots of 123128320
- 123128320 squared (1231283202) is 15160583186022400
- 123128320 cubed (1231283203) is 1866697137915185594368000
-
The
square root of 123128320 is 11096.3201107395 -
The
cube root of 123128320 is 497.4918662341
Scales and comparisons
How big is 123128320?- 123,128,320 seconds is equal to 3 years, 47 weeks, 4 days, 2 hours, 18 minutes, 40 seconds.
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To count from 1 to 123,128,320 would take you about five 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 123128320 cubic inches would be around 41.5 feet tall.
Recreational maths with 123128320
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