21389938000
21,389,938,000 is an even composite number composed of four prime numbers multiplied together.
21389938000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21389938000:
24 × 53 × 313 × 359
(2 × 2 × 2 × 2 × 5 × 5 × 5 × 31 × 31 × 31 × 359)See below for interesting mathematical facts about the number 21389938000 from the Numbermatics database.
Names of 21389938000
- Cardinal: 21389938000 can be written as Twenty-one billion, three hundred eighty-nine million, nine hundred thirty-eight thousand.
Scientific notation
- Scientific notation: 2.1389938 × 1010
Factors of 21389938000
Divisors of 21389938000
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 5 8 10 16 20 25 31 40 50 62 80 100 124 125 155 200 248 250 310 359 400 496 500 620 718 775 961 1000 1240 1436 1550 1795 1922 2000 2480 2872 3100 3590 3844 3875 4805 5744 6200 7180 7688 7750 8975 9610 11129 12400 14360 15376 15500 17950 19220 22258 24025 28720 29791 31000 35900 38440 44516 44875 48050 55645 59582 62000 71800 76880 89032 89750 96100 111290 119164 120125 143600 148955 178064 179500 192200 222580 238328 240250 278225 297910 344999 359000 384400 445160 476656 480500 556450 595820 689998 718000 744775 890320 961000 1112900 1191640 1379996 1391125 1489550 1724995 1922000 2225800 2383280 2759992 2782250 2979100 3449990 3723875 4451600 5519984 5564500 5958200 6899980 7447750 8624975 10694969 11129000 11916400 13799960 14895500 17249950 21389938 22258000 27599920 29791000 34499900 42779876 43124875 53474845 59582000 68999800 85559752 86249750 106949690 137999600 171119504 172499500 213899380 267374225 344999000 427798760 534748450 689998000 855597520 1069496900 1336871125 2138993800 2673742250 4277987600 5347484500 10694969000 21389938000
- Sum of all divisors σ(n): 53593712640
- Sum of proper divisors (its aliquot sum) s(n): 32203774640
- 21389938000 is an abundant number, because the sum of its proper divisors (32203774640) is greater than itself. Its abundance is 10813836640
Bases of 21389938000
- Binary: 100111110101111000010001101010100002
- Hexadecimal: 0x4FAF08D50
- Base-36: 9TR0LSG
Squares and roots of 21389938000
- 21389938000 squared (213899380002) is 457529447643844000000
- 21389938000 cubed (213899380003) is 9786526518276069241672000000000
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The
square root of 21389938000 is 146252.9931317647 -
The
cube root of 21389938000 is 2775.8958988111
Scales and comparisons
How big is 21389938000?- 21,389,938,000 seconds is equal to 680 years, 6 weeks, 6 days, 17 hours, 26 minutes, 40 seconds.
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To count from 1 to 21,389,938,000 would take you about one thousand, three hundred sixty 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 21389938000 cubic inches would be around 231.3 feet tall.
Recreational maths with 21389938000
- 21389938000 backwards is 00083998312
- The number of decimal digits it has is: 11
- The sum of 21389938000's digits is 43
- More coming soon!
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