138891900
138,891,900 is an even composite number composed of six prime numbers multiplied together.
138891900 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 138891900:
22 × 3 × 52 × 7 × 19 × 592
(2 × 2 × 3 × 5 × 5 × 7 × 19 × 59 × 59)See below for interesting mathematical facts about the number 138891900 from the Numbermatics database.
Names of 138891900
- Cardinal: 138891900 can be written as One hundred thirty-eight million, eight hundred ninety-one thousand, nine hundred.
Scientific notation
- Scientific notation: 1.388919 × 108
Factors of 138891900
Divisors of 138891900
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 7 10 12 14 15 19 20 21 25 28 30 35 38 42 50 57 59 60 70 75 76 84 95 100 105 114 118 133 140 150 175 177 190 210 228 236 266 285 295 300 350 354 380 399 413 420 475 525 532 570 590 665 700 708 798 826 885 950 1050 1121 1140 1180 1239 1330 1425 1475 1596 1652 1770 1900 1995 2065 2100 2242 2478 2660 2850 2950 3325 3363 3481 3540 3990 4130 4425 4484 4956 5605 5700 5900 6195 6650 6726 6962 7847 7980 8260 8850 9975 10325 10443 11210 12390 13300 13452 13924 15694 16815 17405 17700 19950 20650 20886 22420 23541 24367 24780 28025 30975 31388 33630 34810 39235 39900 41300 41772 47082 48734 52215 56050 61950 66139 67260 69620 73101 78470 84075 87025 94164 97468 104430 112100 117705 121835 123900 132278 146202 156940 168150 174050 196175 198417 208860 235410 243670 261075 264556 292404 330695 336300 348100 365505 392350 396834 462973 470820 487340 522150 588525 609175 661390 731010 784700 793668 925946 992085 1044300 1177050 1218350 1322780 1388919 1462020 1653475 1827525 1851892 1984170 2314865 2354100 2436700 2777838 3306950 3655050 3968340 4629730 4960425 5555676 6613900 6944595 7310100 9259460 9920850 11574325 13889190 19841700 23148650 27778380 34722975 46297300 69445950 138891900
- Sum of all divisors σ(n): 491774080
- Sum of proper divisors (its aliquot sum) s(n): 352882180
- 138891900 is an abundant number, because the sum of its proper divisors (352882180) is greater than itself. Its abundance is 213990280
Bases of 138891900
- Binary: 10000100011101010010011111002
- Hexadecimal: 0x847527C
- Base-36: 2AOXOC
Squares and roots of 138891900
- 138891900 squared (1388919002) is 19290959885610000
- 138891900 cubed (1388919003) is 2679358071336155559000000
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The
square root of 138891900 is 11785.2407697085 -
The
cube root of 138891900 is 517.8758267875
Scales and comparisons
How big is 138891900?- 138,891,900 seconds is equal to 4 years, 21 weeks, 4 days, 13 hours, 5 minutes.
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To count from 1 to 138,891,900 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 138891900 cubic inches would be around 43.2 feet tall.
Recreational maths with 138891900
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