399838428
399,838,428 is an even composite number composed of six prime numbers multiplied together.
What does the number 399838428 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 144 divisors.
399838428 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 399838428:
22 × 32 × 11 × 29 × 37 × 941
(2 × 2 × 3 × 3 × 11 × 29 × 37 × 941)See below for interesting mathematical facts about the number 399838428 from the Numbermatics database.
Names of 399838428
- Cardinal: 399838428 can be written as Three hundred ninety-nine million, eight hundred thirty-eight thousand, four hundred twenty-eight.
Scientific notation
- Scientific notation: 3.99838428 × 108
Factors of 399838428
Divisors of 399838428
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 9 11 12 18 22 29 33 36 37 44 58 66 74 87 99 111 116 132 148 174 198 222 261 319 333 348 396 407 444 522 638 666 814 941 957 1044 1073 1221 1276 1332 1628 1882 1914 2146 2442 2823 2871 3219 3663 3764 3828 4292 4884 5646 5742 6438 7326 8469 9657 10351 11292 11484 11803 12876 14652 16938 19314 20702 23606 27289 31053 33876 34817 35409 38628 41404 47212 54578 62106 69634 70818 81867 93159 104451 106227 109156 124212 139268 141636 163734 186318 208902 212454 245601 300179 313353 327468 372636 382987 417804 424908 491202 600358 626706 765974 900537 982404 1009693 1148961 1200716 1253412 1531948 1801074 2019386 2297922 2701611 3029079 3446883 3602148 4038772 4595844 5403222 6058158 6893766 9087237 10806444 11106623 12116316 13787532 18174474 22213246 33319869 36348948 44426492 66639738 99959607 133279476 199919214 399838428
- Sum of all divisors σ(n): 1172676960
- Sum of proper divisors (its aliquot sum) s(n): 772838532
- 399838428 is an abundant number, because the sum of its proper divisors (772838532) is greater than itself. Its abundance is 373000104
Bases of 399838428
- Binary: 101111101010100001100110111002
- Hexadecimal: 0x17D50CDC
- Base-36: 6M1XB0
Squares and roots of 399838428
- 399838428 squared (3998384282) is 159870768505511184
- 399838428 cubed (3998384283) is 63922476762395501146978752
-
The
square root of 399838428 is 19995.9602920191 -
The
cube root of 399838428 is 736.7070803115
Scales and comparisons
How big is 399838428?- 399,838,428 seconds is equal to 12 years, 37 weeks, 18 hours, 13 minutes, 48 seconds.
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To count from 1 to 399,838,428 would take you about nineteen 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 399838428 cubic inches would be around 61.4 feet tall.
Recreational maths with 399838428
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