39989985
39,989,985 is an odd composite number composed of six prime numbers multiplied together.
39989985 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 39989985:
3 × 5 × 7 × 23 × 29 × 571
See below for interesting mathematical facts about the number 39989985 from the Numbermatics database.
Names of 39989985
- Cardinal: 39989985 can be written as Thirty-nine million, nine hundred eighty-nine thousand, nine hundred eighty-five.
Scientific notation
- Scientific notation: 3.9989985 × 107
Factors of 39989985
Divisors of 39989985
- Number of divisors d(n): 64
-
Complete list of divisors:
1 3 5 7 15 21 23 29 35 69 87 105 115 145 161 203 345 435 483 571 609 667 805 1015 1713 2001 2415 2855 3045 3335 3997 4669 8565 10005 11991 13133 14007 16559 19985 23345 39399 49677 59955 65665 70035 82795 91931 115913 196995 248385 275793 347739 380857 459655 579565 1142571 1378965 1738695 1904285 2665999 5712855 7997997 13329995 39989985
- Sum of all divisors σ(n): 79073280
- Sum of proper divisors (its aliquot sum) s(n): 39083295
- 39989985 is a deficient number, because the sum of its proper divisors (39083295) is less than itself. Its deficiency is 906690
Bases of 39989985
- Binary: 100110001000110010111000012
- Hexadecimal: 0x26232E1
- Base-36: NT4GX
Squares and roots of 39989985
- 39989985 squared (399899852) is 1599198900300225
- 39989985 cubed (399899853) is 63951940035022493246625
-
The
square root of 39989985 is 6323.7635155025 -
The
cube root of 39989985 is 341.9666446045
Scales and comparisons
How big is 39989985?- 39,989,985 seconds is equal to 1 year, 14 weeks, 20 hours, 19 minutes, 45 seconds.
-
To count from 1 to 39,989,985 would take you about forty-seven weeks!
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 39989985 cubic inches would be around 28.5 feet tall.
Recreational maths with 39989985
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