138895965
138,895,965 is an odd composite number composed of six prime numbers multiplied together.
138895965 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 138895965:
34 × 5 × 13 × 23 × 31 × 37
(3 × 3 × 3 × 3 × 5 × 13 × 23 × 31 × 37)See below for interesting mathematical facts about the number 138895965 from the Numbermatics database.
Names of 138895965
- Cardinal: 138895965 can be written as One hundred thirty-eight million, eight hundred ninety-five thousand, nine hundred sixty-five.
Scientific notation
- Scientific notation: 1.38895965 × 108
Factors of 138895965
Divisors of 138895965
- Number of divisors d(n): 160
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Complete list of divisors:
1 3 5 9 13 15 23 27 31 37 39 45 65 69 81 93 111 115 117 135 155 185 195 207 279 299 333 345 351 403 405 465 481 555 585 621 713 837 851 897 999 1035 1053 1147 1209 1395 1443 1495 1665 1755 1863 2015 2139 2405 2511 2553 2691 2997 3105 3441 3565 3627 4185 4255 4329 4485 4995 5265 5735 6045 6417 7215 7659 8073 9269 9315 10323 10695 10881 11063 12555 12765 12987 13455 14911 14985 17205 18135 19251 21645 22977 24219 26381 27807 30969 32085 32643 33189 38295 38961 40365 44733 46345 51615 54405 55315 57753 64935 68931 74555 79143 83421 92907 96255 99567 114885 121095 131905 134199 139035 154845 163215 165945 194805 223665 237429 250263 288765 298701 342953 344655 395715 402597 417105 464535 497835 670995 712287 750789 896103 1028859 1187145 1207791 1251315 1493505 1714765 2012985 2136861 3086577 3561435 3753945 4480515 5144295 6038955 9259731 10684305 15432885 27779193 46298655 138895965
- Sum of all divisors σ(n): 296626176
- Sum of proper divisors (its aliquot sum) s(n): 157730211
- 138895965 is an abundant number, because the sum of its proper divisors (157730211) is greater than itself. Its abundance is 18834246
Bases of 138895965
- Binary: 10000100011101100010010111012
- Hexadecimal: 0x847625D
- Base-36: 2AP0T9
Squares and roots of 138895965
- 138895965 squared (1388959652) is 19292089093281225
- 138895965 cubed (1388959653) is 2679593331477270762757125
-
The
square root of 138895965 is 11785.4132299211 -
The
cube root of 138895965 is 517.8808790253
Scales and comparisons
How big is 138895965?- 138,895,965 seconds is equal to 4 years, 21 weeks, 4 days, 14 hours, 12 minutes, 45 seconds.
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To count from 1 to 138,895,965 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 138895965 cubic inches would be around 43.2 feet tall.
Recreational maths with 138895965
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