16438868894
16,438,868,894 is an even composite number composed of six prime numbers multiplied together.
16438868894 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 16438868894:
2 × 7 × 19 × 61 × 907 × 1117
See below for interesting mathematical facts about the number 16438868894 from the Numbermatics database.
Names of 16438868894
- Cardinal: 16438868894 can be written as Sixteen billion, four hundred thirty-eight million, eight hundred sixty-eight thousand, eight hundred ninety-four.
Scientific notation
- Scientific notation: 1.6438868894 × 1010
Factors of 16438868894
Divisors of 16438868894
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 7 14 19 38 61 122 133 266 427 854 907 1117 1159 1814 2234 2318 6349 7819 8113 12698 15638 16226 17233 21223 34466 42446 55327 68137 110654 120631 136274 148561 241262 297122 387289 476959 774578 953918 1013119 1051213 1294603 2026238 2102426 2589206 7091833 7358491 9062221 14183666 14716982 18124442 19249261 38498522 61800259 123600518 134744827 269489654 432601813 865203626 1174204921 2348409842 8219434447 16438868894
- Sum of all divisors σ(n): 30210685440
- Sum of proper divisors (its aliquot sum) s(n): 13771816546
- 16438868894 is a deficient number, because the sum of its proper divisors (13771816546) is less than itself. Its deficiency is 2667052348
Bases of 16438868894
- Binary: 11110100111101010100111011100111102
- Hexadecimal: 0x3D3D53B9E
- Base-36: 7JVA0F2
Squares and roots of 16438868894
- 16438868894 squared (164388688942) is 270236410514120783236
- 16438868894 cubed (164388688943) is 4442380922826794691297197060984
-
The
square root of 16438868894 is 128214.1524715583 -
The
cube root of 16438868894 is 2542.6737759581
Scales and comparisons
How big is 16438868894?- 16,438,868,894 seconds is equal to 522 years, 36 weeks, 4 days, 16 hours, 28 minutes, 14 seconds.
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To count from 1 to 16,438,868,894 would take you about one thousand and forty-five 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 16438868894 cubic inches would be around 211.9 feet tall.
Recreational maths with 16438868894
- 16438868894 backwards is 49886883461
- The number of decimal digits it has is: 11
- The sum of 16438868894's digits is 65
- More coming soon!
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