18138929480
18,138,929,480 is an even composite number composed of five prime numbers multiplied together.
What does the number 18138929480 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 128 divisors.
18138929480 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 18138929480:
23 × 5 × 7 × 713 × 181
(2 × 2 × 2 × 5 × 7 × 71 × 71 × 71 × 181)See below for interesting mathematical facts about the number 18138929480 from the Numbermatics database.
Names of 18138929480
- Cardinal: 18138929480 can be written as Eighteen billion, one hundred thirty-eight million, nine hundred twenty-nine thousand, four hundred eighty.
Scientific notation
- Scientific notation: 1.813892948 × 1010
Factors of 18138929480
Divisors of 18138929480
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 35 40 56 70 71 140 142 181 280 284 355 362 497 568 710 724 905 994 1267 1420 1448 1810 1988 2485 2534 2840 3620 3976 4970 5041 5068 6335 7240 9940 10082 10136 12670 12851 19880 20164 25205 25340 25702 35287 40328 50410 50680 51404 64255 70574 89957 100820 102808 128510 141148 176435 179914 201640 257020 282296 352870 357911 359828 449785 514040 705740 715822 719656 899570 912421 1411480 1431644 1789555 1799140 1824842 2505377 2863288 3579110 3598280 3649684 4562105 5010754 6386947 7158220 7299368 9124210 10021508 12526885 12773894 14316440 18248420 20043016 25053770 25547788 31934735 36496840 50107540 51095576 63869470 64781891 100215080 127738940 129563782 255477880 259127564 323909455 453473237 518255128 647818910 906946474 1295637820 1813892948 2267366185 2591275640 3627785896 4534732370 9069464740 18138929480
- Sum of all divisors σ(n): 47570664960
- Sum of proper divisors (its aliquot sum) s(n): 29431735480
- 18138929480 is an abundant number, because the sum of its proper divisors (29431735480) is greater than itself. Its abundance is 11292806000
Bases of 18138929480
- Binary: 100001110010010101000011001010010002
- Hexadecimal: 0x4392A1948
- Base-36: 8BZG7K8
Squares and roots of 18138929480
- 18138929480 squared (181389294802) is 329020762680413070400
- 18138929480 cubed (181389294803) is 5968084411715828461255875392000
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The
square root of 18138929480 is 134680.8430327045 -
The
cube root of 18138929480 is 2627.4666811515
Scales and comparisons
How big is 18138929480?- 18,138,929,480 seconds is equal to 576 years, 39 weeks, 4 days, 7 hours, 31 minutes, 20 seconds.
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To count from 1 to 18,138,929,480 would take you about one thousand, one hundred fifty-three 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 18138929480 cubic inches would be around 219 feet tall.
Recreational maths with 18138929480
- 18138929480 backwards is 08492983181
- The number of decimal digits it has is: 11
- The sum of 18138929480's digits is 53
- More coming soon!
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