138974745
138,974,745 is an odd composite number composed of seven prime numbers multiplied together.
138974745 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138974745:
3 × 5 × 7 × 13 × 17 × 53 × 113
See below for interesting mathematical facts about the number 138974745 from the Numbermatics database.
Names of 138974745
- Cardinal: 138974745 can be written as One hundred thirty-eight million, nine hundred seventy-four thousand, seven hundred forty-five.
Scientific notation
- Scientific notation: 1.38974745 × 108
Factors of 138974745
Divisors of 138974745
- Number of divisors d(n): 128
-
Complete list of divisors:
1 3 5 7 13 15 17 21 35 39 51 53 65 85 91 105 113 119 159 195 221 255 265 273 339 357 371 455 565 595 663 689 791 795 901 1105 1113 1365 1469 1547 1695 1785 1855 1921 2067 2373 2703 3315 3445 3955 4407 4505 4641 4823 5565 5763 5989 6307 7345 7735 9605 10283 10335 11713 11865 13447 13515 14469 17967 18921 22035 23205 24115 24973 28815 29945 30849 31535 35139 40341 41923 51415 58565 67235 72345 74919 77857 81991 89835 94605 101813 124865 125769 154245 174811 175695 201705 209615 233571 245973 305439 374595 389285 409955 509065 524433 544999 628845 712691 874055 1167855 1229865 1323569 1527195 1634997 2138073 2622165 2724995 3563455 3970707 6617845 8174985 9264983 10690365 19853535 27794949 46324915 138974745
- Sum of all divisors σ(n): 297851904
- Sum of proper divisors (its aliquot sum) s(n): 158877159
- 138974745 is an abundant number, because the sum of its proper divisors (158877159) is greater than itself. Its abundance is 19902414
Bases of 138974745
- Binary: 10000100100010010110000110012
- Hexadecimal: 0x8489619
- Base-36: 2AQPLL
Squares and roots of 138974745
- 138974745 squared (1389747452) is 19313979747815025
- 138974745 cubed (1389747453) is 2684155410387757406543625
-
The
square root of 138974745 is 11788.7550233263 -
The
cube root of 138974745 is 517.9787723049
Scales and comparisons
How big is 138974745?- 138,974,745 seconds is equal to 4 years, 21 weeks, 5 days, 12 hours, 5 minutes, 45 seconds.
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To count from 1 to 138,974,745 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 138974745 cubic inches would be around 43.2 feet tall.
Recreational maths with 138974745
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