138739900
138,739,900 is an even composite number composed of six prime numbers multiplied together.
138739900 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138739900:
22 × 52 × 13 × 19 × 41 × 137
(2 × 2 × 5 × 5 × 13 × 19 × 41 × 137)See below for interesting mathematical facts about the number 138739900 from the Numbermatics database.
Names of 138739900
- Cardinal: 138739900 can be written as One hundred thirty-eight million, seven hundred thirty-nine thousand, nine hundred.
Scientific notation
- Scientific notation: 1.387399 × 108
Factors of 138739900
Divisors of 138739900
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 10 13 19 20 25 26 38 41 50 52 65 76 82 95 100 130 137 164 190 205 247 260 274 325 380 410 475 494 533 548 650 685 779 820 950 988 1025 1066 1235 1300 1370 1558 1781 1900 2050 2132 2470 2603 2665 2740 3116 3425 3562 3895 4100 4940 5206 5330 5617 6175 6850 7124 7790 8905 10127 10412 10660 11234 12350 13015 13325 13700 15580 17810 19475 20254 22468 24700 26030 26650 28085 33839 35620 38950 40508 44525 50635 52060 53300 56170 65075 67678 73021 77900 89050 101270 106723 112340 130150 135356 140425 146042 169195 178100 202540 213446 253175 260300 280850 292084 338390 365105 426892 506350 533615 561700 676780 730210 845975 1012700 1067230 1387399 1460420 1691950 1825525 2134460 2668075 2774798 3383900 3651050 5336150 5549596 6936995 7302100 10672300 13873990 27747980 34684975 69369950 138739900
- Sum of all divisors σ(n): 352164960
- Sum of proper divisors (its aliquot sum) s(n): 213425060
- 138739900 is an abundant number, because the sum of its proper divisors (213425060) is greater than itself. Its abundance is 74685160
Bases of 138739900
- Binary: 10000100010100000000101111002
- Hexadecimal: 0x84500BC
- Base-36: 2ALOE4
Squares and roots of 138739900
- 138739900 squared (1387399002) is 19248759852010000
- 138739900 cubed (1387399003) is 2670571016991882199000000
-
The
square root of 138739900 is 11778.7902604643 -
The
cube root of 138739900 is 517.6868408243
Scales and comparisons
How big is 138739900?- 138,739,900 seconds is equal to 4 years, 21 weeks, 2 days, 18 hours, 51 minutes, 40 seconds.
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To count from 1 to 138,739,900 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 138739900 cubic inches would be around 43.1 feet tall.
Recreational maths with 138739900
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